Download Syntheses, Structures, and Luminescent Properties of the Zn and Cd

34 卷 9 期
2015. 9
结
构 化 学 （JIEGOU HUAXUE）
Chinese J. Struct. Chem.
Vol. 34, No. 9
1371─1378
Syntheses, Structures, and Luminescent Properties
of the ZnII and CdII 1-D Chain Polymers
①
Assembled by Salicylhydroxamic Acid
GAO Dan-Dana GAO Qianb
CHEN Yan-Meib
LI Ya-Hongb② LI Wua②
a
(Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,
Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China)
b
(College of Chemistry, Chemical Engineering and Materials Science,
Soochow University, Suzhou 215123, China)
ABSTRACT Two complexes of compositions [Zn(H2shi)(CH3COO)]n (1) and [Cd(H2shi)2(H2O)]n (2)
(H3shi = salicylhydroxamic acid) have been prepared under solvothermal conditions. They are
characterized by X-ray single-crystal diffraction, IR and elemental analysis. The crystal of 1
belongs to the tetragonal system, space group I41/a with a = 18.972(3), b = 18.972(3), c = 10.938(2)
Å, V = 3937.1(1) Å3, C9H9NO5Zn, Mr = 276.54, Z = 16, Dc = 1.866 g/cm3, μ = 2.500 mm-1, F(000)
= 2240, the final R = 0.0425 and wR = 0.123. The crystal of 2 belongs to the monoclinic system,
space group P2/c with a = 16.647(3), b = 6.4577(1), c = 6.5623(1) Å, V = 702.4(2) Å3,
C14H14Cd2N2O7, Mr = 434.68, Z = 2, Dc = 2.055 g/cm3, μ = 1.599 mm-1, F(000) = 432, the final R =
0.0211 and wR = 0.0761. They both possess 1-D polymeric chain structures. The luminescent
properties of complexes 1 and 2 have been investigated.
Keywords: hydroxamic acids, zinc complex, cadmium complex, 1-D polymeric
chain, luminescent property; DOI: 10.14102/j.cnki.0254-5861.2011-0675
1
INTRODUCTION
coordination behaviors of hydroxamic acid can be
tuned by the incorporation of different functional
Hydroxamic acids (HAs) are a valuable class of
groups, e.g., -NMe2[2], -OH[6], -NH2[7], etc., at ortho,
bioligands and have been extensively employed in
meta and (or) para positions of the phenyl ring,
[1]
chemical biology . They possess high metal-
generating coordination complexes with fascinating
chelating affinity and exhibit versatile coordination
configurations and useful properties.
These properties make hydroxamic acids
Salicylhydroxamic acid (H3shi) is a member of a
to be powerful ligands to construct homometallic or
big family of hydroxamic acids. It shows rich
heterometallic polynuclear clusters and chain com-
coordination modes[8-18] (Scheme 1) due to the extra
plexes[2-5]. Recent advances in the coordination
hydroxyl group at the meta position of phenyl ring.
chemistry of hydroxamic acids reveal that the
H3shi acted as a polydentate ligand to afford mo-
modes.
Received 9 February 2015; accepted 13 July 2015 (CCDC 996953 for 1 and 996946 for 2)
① Supported by the National Natural Science Foundation of China (21272167, 51404234 and U140710123), a project Funded by the Priority Academic
Program Development of Jiangsu Higher Education Institution and KLSLRC (KLSLRC-KF-13-HX-1)
② Corresponding authors. Li Ya-Hong, born in 1968, professor, majoring in organometallic chemistry. E-mail: [email protected];
Li Wu, born in 1966, professor, majoring in inorganic chemistry. E-mail: [email protected]
GAO D. D. et al.: Syntheses, Structures, and Luminescent Properties
of the ZnII and CdII 1-D Chain Polymers Assembled by Salicylhydroxamic Acid
1372
[14]
No. 9
and Pt
[13]
,
e.g. cleavage of DNA, RNA and amino acid esters,
generating polynuclear compounds with Cu
[10]
,
etc.[23-27], and in organic synthesis[28]. To further
Mo[11], and V[12] as well as polynuclear heterome-
explore the coordination chemistry of salicylhydro-
nonuclear complexes with Ru
[18]
, V
[10]
. To our
tallic Mn-Ho and Mn-Dy complexes
surprise, no polynuclear coordination complexes of
II
II
Zn and Cd are reported. As is well known, coorII
II
xamic acid with ZnII and CdII, we conducted the
reaction
of
salicylhydroxamic
Zn(CH3COO)2·2H2O
and
acid
with
Cd(CH3COO)2·2H2O,
dination complexes of Zn and Cd have attracted a
respectively. Two new 1-D polymeric chain com-
great deal of interest due to their potential applica-
plexes with formulas [Zn(H2shi)(CH3COO)]n (1) and
[19-21]
, such
[Cd(H2shi)2(H2O)]n (2) were synthesized. Herein, we
as light-emitting diodes (LEDs) and organic light-
report the syntheses, structures and luminesient
tions in fluorescence-emitting materials
[22]
, in biological systems,
emitting diodes (OLEDs)
Scheme 1.
2
properties of these two complexes.
Coordination modes of H3shi
EXPERIMENTAL
2. 2. 1
Synthesis of [Zn(H2shi)(CH3COO)]n (1)
A mixture of Zn(CH3COO)2·2H2O (0.0216 g,
2. 1
Materials and physical measurement
0.10 mmol), H3shi (0.0153 g, 0.10 mmol), and H2O
All chemicals were purchased from commercial
(1.0 mL) was placed in a Pyrex-tube. The tube was
suppliers and used without further purification. The
heated at 80 ℃ for 6 days. After being cooled to
C, H and N microanalyses were carried out with a
room temperature, pale yellow crystals of the
Carlo-Erba EA1110 CHNO-S elemental analyzer.
product were afforded. The crystals were collected
FT-IR spectra were recorded from KBr pellets in the
by filtration, washed with H2O (2 mL) and dried in
-1
on a Nicolet MagNa-
air. Yield: 40% (based on Zn). Anal. Calcd. (%) for
IR500 spectrometer. Crystal determination was
C9H9NO5Zn: C, 39.09; H, 3.28; N, 5.06. Found (%):
performed with a Bruker SMART APEX ΙΙ CCDC
C, 38.96; H, 3.15; N, 5.01. IR (KBr, cm-1): 3274(s),
diffractometer
1612(s), 1551(s), 1481(s), 1367(m), 1250(m),
range of 400～4000 cm
equipped
with
graphite-mono-
chromatized MoKα radiation (λ = 0.71073 Å). The
1153(s), 1059(s), 1031(m), 925(s), 812(m), 751(m).
solid-state luminescence emission/excitation spectra
2. 2. 2 Synthesis of [Cd(H2Shi)2(H2O)]n (2)
A mixture of Cd(CH3COO)2·2H2O (0.0207 g,
0.10 mmol), H3shi (0.0153 g, 0.10 mmol), and H2O
(1.0 mL) was placed in a Pyrex-tube. The tube was
heated at 80 ℃ for 7 days. After being cooled to
room temperature, pale yellow crystals of the
product were afforded. The crystals were collected
were recorded on a FLS920 fluorescence spectrophotometer equipped with a continuous Xe-900
xenon lamp and a μF900 microsecond flash lamp.
Powder X-ray diffraction (PXRD) was recorded on
a Rigaku D/Max-2500 diffractometer.
2. 2
Syntheses of the complexes
2015
Vol. 34
结
构
化
学（JIEGOU HUAXUE）Chinese
by filtration, washed with H2O (2 mL) and dried in
air. Yield: 56% (based on Cd). Anal. Calcd. (%) for
C14H14Cd2N2O7: C, 38.68; H, 3.25; N, 6.44. Found
(%): C, 38.76; H, 3.21; N, 6.38. IR (KBr, cm-1):
3468(m), 3015(w), 1613(s), 1549(s), 1481(s),
1417(s), 1341(s), 1250(s), 1153(s), 1122(s), 1050(s),
925(s), 812(m), 751(s), 659(s).
2. 3 X-ray crystal structure determination
The single crystals of complexes 1 and 2 were
determined with MoKα radiation using a Bruker
SMART APEX-II CCD diffractometer at 296(2) K
for 1 and 293(2) K for 2 using the ω-2θ scan mode.
Table 1.
J.
Struct. Chem.
1373
For complex 1, in the range of 2.15≤θ≤28.42o,
a total of 13821 reflections were obtained with 2490
unique ones and used in the refinements. For
complex 2, in the range of 3.39≤θ≤27.49o, a
total of 5355 reflections were obtained with 1573
unique ones and used in the refinements. The
structures were solved by direct methods and
refined with full-matrix least-squares on F2 using
SHELXS-97[29] and SHELXL-97[30]. The selected
bond lengths and bond angles of complexes 1 and 2
are listed in Table 1.
Selected Bond Lengths (Å) and Bond Angles (°)
1
Bond
Dist.
Bond
Dist.
Bond
Dist.
Zn(1)–O(4)#1
1.983(2)
Zn(1)–O(2)#1
1.997(2)
Zn(1)–O(3)
2.095(3)
Zn(1)–O(2)
2.035(2)
Zn(1)–O(1)
2.046(2)
Angle
(°)
Angle
(°)
Angle
(°)
O(4)#1–Zn(1)–O(2)#1
97.34(1)
O(4)#1–Zn(1)–O(2)
165.92(1)
O(2)#1–Zn(1)–O(2)
96.68(1)
O(2)#1–Zn(1)–O(1)
109.76(1)
O(2)–Zn(1)–O(1)
78.86(9)
O(2)#1–Zn(1)–O(3)
97.83(1)
O(1)–Zn(1)–O(3)
151.59(1)
O(2)–Zn(1)–O(3)
91.63(1)
O(4)#1–Zn(1)–O(1)
95.15(1)
O(4)#1–Zn(1)–O(3)
87.73(1)
N(1)–O(2)–Zn(1)#2
114.30(2)
N(1)–O(2)–Zn(1)
109.75(2)
Zn(1)#2–O(2)–Zn(1)
129.73(1)
2
Bond
Dist.
Bond
Dist.
Bond
Dist.
Cd(1)–O(1)
2.341(2)
Cd(1)–O(3)#2
2.3533(2)
Cd(1)–O(1)#3
2.4323(2)
Cd(1)–O(1W)
2.366(2)
Angle
(°)
Angle
(°)
Angle
(°)
O(1)#1–Cd(1)–O(1)
179.48(5)
O(1)#1–Cd(1)–O(3)#2
91.04(6)
Cd(1)–O(1)–Cd(1)#2
103.12(6)
O(1)–Cd(1)–O(3)#2
89.12(6)
O(1)–Cd(1)–O(3)#3
91.04(6)
O(1W)–Cd(1)–O(1)#2
137.13(4)
O(3)#2–Cd(1)–O(3)#3
144.33(7)
O(1)#1–Cd(1)–O(1W)
90.26(2)
O(3)#2–Cd(1)–O(1)#2
66.99(5)
O(1)–Cd(1)–O(1W)
90.26(2)
O(3)#2–Cd(1)–O(1W)
72.17(4)
O(3)#3–Cd(1)–O(1)#2
147.12(5)
O(1)#1–Cd(1)–O(1)#3
76.88(6)
O(1)–Cd(1)–O(1)#3
102.73(6)
O(1)#1–Cd(1)–O(1)#2
102.73(6)
O(3)#2–Cd(1)–O(1)#3
147.12(5)
O(3)#3–Cd(1)–O(1)#3
66.99(5)
O(1)–Cd(1)–O(1)#2
76.88(6)
O(1W)–Cd(1)–O(1)#3
137.13(4)
O(1)#3–Cd(1)–O(1)#2
85.74(7)
O(3)#3–Cd(1)–O(1W)
72.17(4)
N(1)–O(1)–Cd(1)
110.68(1)
N(1)–O(1)–Cd(1)#2
108.95(1)
O(1)–Cd(1)–O(1W)
90.26(2)
N(1)–O(1)–Cd(1)#2
108.95(1)
O(1)#1–Cd(1)–O(3)#3
89.12(6)
3 RESULTS AND DISCUSSION
3. 1 Structure descriptions of the complexes
3. 1. 1 Structure of complex 1
The crystal structure analysis reveals that 1
crystallizes in the tetragonal crystal system, space
group I41/a. The asymmetric unit (Fig. 1) consists
of one crystallographically independent ZnII atom,
one H2shi- ligand and one acetate ion. The ZnII ion
is penta-coordinated by one carboxyl oxygen atom,
one μ2-hydroxamate oxygen atom and one μ1-
hydroxamate oxygen atom from two H2shi- ligands,
and two oxygen atoms from acetate ions, displaying
distorted tetragonal geometry. The adjacent ZnII
ions are doubly connected by two oxygen atoms of
the acetate ion and one hydroxamate oxygen atom
to generate an infinitive 1-D chain structure (Fig. 2).
The Zn–O/N bond lengths are in the range of
1.983(2)～2.095(3) Å. The ZnII···ZnII distance is
3.6506(7) Å. The H2shi- ligands possess the coordination mode F (Scheme 1).
GAO D. D. et al.: Syntheses, Structures, and Luminescent Properties
of the ZnII and CdII 1-D Chain Polymers Assembled by Salicylhydroxamic Acid
1374
Fig. 1.
No. 9
Coordination environment of the Zn ion in 1. Hydrogen atoms have been omitted for clarity.
Color scheme: blue, ZnII; red, oxygen; dark blue, nitrogen; yellow, carbon
Fig. 2. 1-D chain structure of 1. Hydrogen atoms are omitted for clarity.
Color scheme: blue, ZnII; red, oxygen; dark blue, nitrogen; yellow, carbon
3. 1. 2
μ2-hydroxamate oxygen atom (coordination mode F
Structure of complex 2
The crystal structure analysis reveals that 2
in Scheme 1), with the Cd–O distances ranging
crystallizes in monoclinic, space group P2/c. The
from 2.341(2) to 2.432(16) Å. The Cd···Cd distance
crystal structure of 2 (Fig. 3) consists of one Cd
II
-
is 3.7392(6) Å.
ion and two singly deprotonated H2shi ligands and
Remarkably, complexes 1 and 2 were prepared by
II
using similar starting materials, but their com-
ions are bridged by the hydroximate oxygen atoms
positions and structures are totally different, indica-
to form a one-dimensional linear chain (Fig. 4).
ting that metal ions play key roles in the construc-
one coordinated water molecule. The adjacent Cd
II
Each Cd ion is bound to seven oxygen atoms (O1,
O1A, O3A, O3B, μ2-O1B, μ2-O1C, and O1W)
-
tion of coordination polymers.
Complexes 1 and 2 join a big family of coor-
originated from four different H2shi ligands and
dination polymers of ZnII/CdII[31-36]. However, the
one water molecule. Each H2shi- ligand chelates one
ZnII and CdII 1-D chain complexes supported by the
CdII ion through a μ1-carbonyl oxygen atom and a
H3shi ligand are never reported.
2015
Vol. 34
Fig. 3.
结
构
化
学（JIEGOU HUAXUE）Chinese
J.
Struct. Chem.
1375
Coordination environment of the Cd ion in 2. Hydrogen atoms have been omitted for clarity.
Color scheme: green, CdII; red, oxygen; blue, nitrogen; yellow, carbon
Fig. 4. 1-D chain structure of 2. Hydrogen atoms are omitted for clarity.
Color scheme: green, CdII; red, oxygen; blue, nitrogen; yellow, carbon
3. 2
Powder X-ray diffraction (PXRD)
and complexes 1 and 2 were investigated in the
In order to check the phase purity of complexes 1
solid state at room temperature (Fig. 7). The H3shi
and 2, the powder X-ray diffractions (PXRD) have
ligand shows photoluminescence emission at 344
been measured and compared with those simulated
nm. Complex 1 shows emission with the maximum
from the single-crystal structure data. As can be
peak at 356 nm. Compared with the H3shi ligand,
seen from Figs. 5 and 6, the experimental PXRD
the red-shifted emission of 1 may be ascribed as the
patterns and simulated peaks match well, indicating
intraligand charge transfer (π-π*)[33,
the purities of the complexes.
nounced fluorescence emission of complex 1
3. 3
reveals its potential application in photoactive
Luminescent property
The luminescent properties of the H3shi ligand
materials.
37]
. The pro-
GAO D. D. et al.: Syntheses, Structures, and Luminescent Properties
of the ZnII and CdII 1-D Chain Polymers Assembled by Salicylhydroxamic Acid
1376
Fig. 5.
Powder XRD patterns of complex 1
Fig. 6.
No. 9
Powder XRD patterns of complex 2
H3Shi
Normalized Intensity
Complex 1
300
350
400
450
Wavelength/nm
Fig. 7. Emission spectra of the H3shi ligand and complex 1
in the solid state at room temperature (Emission slit = 1 nm)
No emission was observed for complex 2. The
plexes of compositions [Zn(H2shi)(CH3COO)]n (1)
water in lattice may prevent an efficient intraligand
and [Cd(H2shi)2(H2O)]n (2) have been prepared
charge transfer.
under solvothermal conditions. The luminescent
properties have been investigated. Complex 1
4
shows red-shifted luminescence emission. The
CONCLUSION
pronounced fluorescence emission of 1 reveals its
II
II
In summary, two 1D chain Zn and Cd com-
potential applications for photoactive materials.
REFERENCES
(1)
Codd, R. Traversing the coordination chemistry and chemical biology of hydroxamic acids. Coord. Chem. Rev. 2008, 252, 1387–1408.
(2)
Gaynor, D.; Starikova, Z. A.; Ostrovsky, S.; Haase, W.; Nolan, K. B. Synthesis and structure of a heptanuclear nickel(II) complex uniquely
exhibiting four distinct binding modes, two of which are novel, for a hydroxamate ligand. Chem. Commun. 2002, 506–507.
(3)
Jankolovits, J.; Andolina, C. M.; Kampf, J. W.; Raymond, K. N.; Pecoraro, V. L. Assembly of near-infrared luminescent lanthanide host(host-guest)
(4)
Eltayeb, A. Z.; Nimir, H. I.; Brown, D. A.; Lan, Y.; Anson, C. E.; Powell, A. K. Magnetic and structural studies of novel tetranickel hydroxamates.
complexes with a metallacrown sandwich motif. Angew. Chem. Int. Ed. 2011, 50, 9660–9664.
Inorg. Chim. Acta 2010, 363, 899–904.
(5)
Bai, Y.; Guo, D.; Duan, C. Y.; Dang, D. B.; Pang, K. L.; Meng, Q. J. A three-dimensional porous metal-organic framework [Fe4L6·(DMF)3·(H2O)10]
constructed from neutral discrete Fe4L6 pyramids (H2L = 1,3-benzodihydroxamix acid). Chem. Commun. 2004, 186–187.
(6)
Gajewska, M.; Luzyanin, K. V.; Guedes da Silva, M. F. C.; Li, Q. S.; Cui, J. R.; Pombeiro, A. J. L. The first tin compounds bearing
oximehydroxamate ligands. Eur. J. Inorg. Chem. 2009, 3765–3769.
2015
(7)
Vol. 34
结
构
化
学（JIEGOU HUAXUE）Chinese
J.
Struct. Chem.
1377
Alagha, A. B. M.; Gaynor, D.; Muller-Bunz, H.; Nolan, K. B.; Parthasarathi, L. fac-Tris(4-amino-benzohydroxamato)iron(III) ethanol solvate.
Acta Crystallogr., Sect. E 2010, 66, m853–854.
(8)
Lah, M. S.; Pecoraro, V. L. A functional analogy between crown ethers and metallacrowns. Inorg. Chem. 1991, 30, 878–880.
(9)
Zaleski, C. M.; Kampf, J. W.; Mallah, T.; Kirk, M.; Pecoraro, V. L. Assessing the slow magnetic relaxation behavior of LnIII4MnIII6 metallacrowns.
Inorg. Chem. 2007, 46, 1954–1956. I
(10) Gibney, B. R.; Kessissoglou, D. P.; Kampf, J. W.; Pecoraro, V. L. Copper(II) 12-metallacrown-4: synthesis, structure, ligand variability, and solution
dynamics in the 12-MC-4 structural motif. Inorg. Chem. 1994, 33, 4840–4849.
(11) Liu, S. C.; Zhu, H. Z.; Zubieta, J. Reactions of polyoxomolybdates with oximes. The crystal and molecular structures of
[(C4H9)4N]2[Mo2O5C6H4(O)CHNO2]·CH2Cl2 and [(C4H9)4N]2[Mo2O5C6H5CH(O)C(NO)C6H52]. Polyhedron 1989, 8, 2473–2480.
(12) Si,eT. K.; Chakraborty, S.; Mukherjee, A. K.; Drew, M. G. B.; Bhattacharyy, R. Novel supramolecular network in tri- and mono-nuclear
oxovanadium(V)-salicyl-hydroximate: synthesis, structure and catalytic oxidation of hydrocarbons using H2O2 as terminal oxidant.. Polyhedron 2008,
27, 2233–2242.
(13) 2Henderson, W.; Evans, C.; Nicholson, B. K.; Fawcett, J. Coordination isomerism in salicylhydroxamate complexes of platinum(II) and
palladium(II). Dalton Tran. 2003, 2691–2697.
(14) Cornman,6C. R.; Colpas, G. J.; Hoeschele, J. D.; Kampf, J.; Pecoraro, V. L. Implications for the spectroscopic assignment of vanadium biomolecules:
structural and spectroscopic characterization of monooxovanadium(V) complexes containing catecholate and hydroximate based noninnocent ligands.
J. Am. Chem. Soc. 1992, 114, 9925–9933.
(15) Stemmier, A. J.; Kampf, J. W.; Kirk, M. L.; Pecoraro, V. L. A model for the inhibition of urease by hydroxamates.1J. Am. Chem. Soc. 1995, 117,
6368–6369.
(16) Centore, R.; Tommaso, G. D.; Iuliano, M.; Tuzi, A. An organouranium coordination polymer containing infinite metal oxide chains.5Acta Cryst.
2007, C63, m253–m255.
(17) Tekeste, T.; Vahrenkamp, H. Enzyme inhibitor modeling with TpZn complexes of functional hydroxamates and oximates.5Inorg. Chim. Acta 2007,
360, 1523–1528.
(18) Comiskey, J.; Farkas, E.; Krot-Lacina, K. A.; Pritchard, R. G.; McAuliffe, C. A.; Nolan, K. B. Synthesis, structures and speciation studies of
ruthenium(III) hydroxamate/hydroximato complexes. Crystal and molecular structure of hydrated [Ru(H2edta)(2-methoxyphenylhydroxamate)], the
first structurally characterised ruthenium(III)-hydroxamate complex. Dalton Tran. 2003, 4243–4249.
(19) Katsoulakou, E.; Bekiari, V.; Raptopoulou, C. P.; Terzis, A.; Manessi-Zoupa, E.; Powell, A.; Perlepes, S. P. Simultaneous coordination of a ketone
by two cadmium(II) ions and conversion to its gem-diolate(-1) form. Inorg. Chem. Commun. 2011, 14, 1057–1060.
(20) Eom, G. H.; Park, H. M.; Hyun, M. Y.; Jang, S. P.; Kim, C.; Lee, J. H.; Lee, S. J.; Kim, S. J.; Kim, Y. Anion effects on the crystal structures of Zn
II
complexes containing 2,2΄-bipyridine: their photoluminescence and catalytic activities. Polyhedron 2011, 30, 1555–1564.
(21) Cui, P.; Chen, Z.; Gao, D. L.; Zhao, B.; Shi, W.; Cheng, P. Syntheses, structures, and photoluminescence of a series of three-dimensional Cd
II
frameworks with a flexible ligand, 1,5-bis(5-tetrazolo)-3-oxapentane. Cryst. Growth & Des. 2010, 10, 4370–4378.
(22) Wang, R. J.; Deng, L. J.; Fu, M.; Cheng, J. L.; Li, J. Y. Novel ZnII complexes of 2-(2-hydroxyphenyl)benzothiazoles ligands: electroluminescence
and application as host materials for phosphorescent organic light-emitting diodes. J. Mater. Chem. 2012, 22, 23454–23460.
(23) Guha, A.; Chattopadhyay, T.; Paul, N. D.; Mukherjee, M.; Goswami, S.; Mondal, T. K.; Zangrando, E.; Das, D. Radical pathway in catecholase
activity with zinc-based model complexes of compartmental ligands. Inorg. Chem. 2012, 51, 8750–8759.
II
(24) Panja, A.; Matsuo, T.; Nagao, S.; Hirota, S. DNA cleavage by the photocontrolled cooperation of Zn centers in an azobenzene-linked dizinc
complex. Inorg. Chem. 2011, 50, 11437–11445.
II
(25) Feng, G. Q.; Natale, D.; Prabaharan, R.; Mareque-Rivas, J. C.; Williams, N. H. Efficient phosphodiester binding and cleavage by a Zn complex
combining hydrogen-bonding interactions and double Lewis acid activation. Angew. Chem., Int. Ed. 2006, 45, 7056–7059.
(26) Scrimin, P.; Tecilla, P.; Tonellato, U.; Valle, G.; Veronese, A. A zinc(II)-organized molecular receptor as a catalyst for the cleavage of amino acid
esters. J. Chem. Soc., Chem. Commun. 1995, 1163–1164.
(27) Jang, K. J.; Yeo, G. Y.; Cho, T. S.; Eom, G. H.; Kim, C.; Kim, S. K. Real-time detection of DNA cleavage induced by [M(2,2΄x+
dipyridylamine)2(NO3)n] (M = Cd, Cu, Ni, Zn, n = 1, 2, x = 0,1): effect of central metal ions. Biophy. Chem. 2010, 148, 138–143.
(28) Meng, X. R.; Song,Y. L.; Hou, H. W.; Han, H. Y.; Xiao, B.; Fan, Y. T.; Zhu, Y. Hydrothermal syntheses, crystal structures, and characteristics of a
series of Cd-btx coordination polymers (btx = 1,4-bis(triazol-1-ylmethyl)benzene). Inorg. Chem. 2004, 43, 3528–3536.
GAO D. D. et al.: Syntheses, Structures, and Luminescent Properties
of the ZnII and CdII 1-D Chain Polymers Assembled by Salicylhydroxamic Acid
1378
No. 9
(29) Sheldrick, G. M. SHELXS-97, Program for Crystal Structure Solution. University of Göttingen, Germany 1997.
(30) Sheldrick, G. M. SHELXL-97, Program for the Refinement of Crystal Structures from Diffraction Data. University of Göttingen, Germany 1997.
(31) Brown, D. A.; Fitzpatrick, N. J.; Müller-Bunz, H.; Ryan, A. T. Di-, tri-, and tetranuclear zinc hydroxamate complexes as structural models for the
inhibition of zinc hydrolases by hydroxamic acids. Inorg. Chem. 2006, 45, 4497–4507.
(32) Alexiou, M.; Dendrinou-Samara, C.; Raptopoulou, C. P.; Terzis, A.; Kessissoglou, D. P. From monomer zinc-oxamato complexes to tetranuclear
inverse 12-membered and octanuclear 12-membered metallacrowns. Inorg. Chem. 2002, 41, 4732–4738.
(33) Chen, Y. M.; Gao, Q.; Liu, Y. L.; Cao, Y. Y.; Gao, D. D.; Liu, J. N.; Zhao, J. J.; Li, Y. H.; Liu, W.; Li, W. Synthesis, crystal structures and
luminescent properties of CdII and ZnII complexes assembled by 4-aminophenylhydroxamic acid. RSC Adv. 2014, 4, 147–153.
(34) Chen, W. T.; Yi, X. G.; Wen, J. W. Synthesis, crystal structure and property of (CdCl3)n·nH3O with a one-dimensional infinite chain-like structure.
Asian J. Chem. 2014, 26, 1253–1254.
(35) Chen, W. T.; Hu, R. H.; Yi, X. G.; Wang, Y. F.; Luo, Z. G.; Fu, H. R.; Liu, J.; Chen, H. L. Synthesis, structure, properties and time-dependent density
functional theory calculations of cadmium complex. Asian J. Chem. 2014, 26, 4865–4867.
(36) Chen, W. T.; Hu, R. H.; Luo, Z. G.; Chen, H. L.; Zhang, X.; Liu, J. [N-ethyl-4,4΄-bipyridinium][ZnX4] (X = Cl or Br) with
N-ethyl-4,4΄-bipyridinium generated in situ: syntheses, structures, fluorescence and TDDFT calculations. Chin. J. Struct. Chem. 2014, 33,
1141–1146.
(37) Zheng, S. L.; Yang, J. H.; Yu, X. L.; Chen, X. M.; Wong, W. T. Syntheses, structures, photoluminescence and theoretical studies of d10 metal
complexes of 2,2΄-dihydroxy-[1,1΄]binaphthalenyl -3,3΄-dicarboxylate. Inorg. Chem. 2004, 43, 830–838.