ISOMERISM - A general survey
... undergoes nucleophilic addition with HCN? Do all carbonyl compounds produce a mixture of products with HCN? If not, why not? ...
... undergoes nucleophilic addition with HCN? Do all carbonyl compounds produce a mixture of products with HCN? If not, why not? ...
Compounds
... The properties of the compound are totally different from the constituent elements. Compounds are composed of atoms held together by chemical bonds. ...
... The properties of the compound are totally different from the constituent elements. Compounds are composed of atoms held together by chemical bonds. ...
Chapter 2 The Components of Matter
... 1. Some compounds have been known and used for so long that their trivial (or common names) have become accepted by the IUPAC as official: ...
... 1. Some compounds have been known and used for so long that their trivial (or common names) have become accepted by the IUPAC as official: ...
Alkene complexes - Dewar/Chatt/Duncanson model
... Main group alkyls known from beginning ZnEt2 PbEt4 Quite stable (thermodynamically !) but it was found that synthesis of transition metal alkyls was difficult - i.e. didn't work Some exceptions Pope & Peachy (1901) PtCl4 + 3CH3MgI [(CH3)3PtI]4 "cubane" (C5H5)Fe(CO)2(CH3) The latter type had -acce ...
... Main group alkyls known from beginning ZnEt2 PbEt4 Quite stable (thermodynamically !) but it was found that synthesis of transition metal alkyls was difficult - i.e. didn't work Some exceptions Pope & Peachy (1901) PtCl4 + 3CH3MgI [(CH3)3PtI]4 "cubane" (C5H5)Fe(CO)2(CH3) The latter type had -acce ...
8.1 Alcohols, Phenols, and Ethers
... 8.6 Ethers Ethers contain an oxygen atom bound to two alkyl groups, each of which may be aliphatic or aromatic. Ethers are distinguished from other organic compounds because they lack a continuous chain of carbons. This is the first time we have encountered an organic compound containing a heteroat ...
... 8.6 Ethers Ethers contain an oxygen atom bound to two alkyl groups, each of which may be aliphatic or aromatic. Ethers are distinguished from other organic compounds because they lack a continuous chain of carbons. This is the first time we have encountered an organic compound containing a heteroat ...
Alkenes Key features sp -hybridized carbons, 120 bond angles
... H2 + CH4 + CH2=CH2 + CH3CH=CH2 etc. ...
... H2 + CH4 + CH2=CH2 + CH3CH=CH2 etc. ...
Chapter 27
... The notations D and L in the name of a carbohydrate specify the configuration on the last chiral carbon atom (from C-1) in the Fischer projection formula. If the is written is written to to the right of that carbon the compound is a D-carbohydrate. If the the left it is an L-carbohydrate. for exampl ...
... The notations D and L in the name of a carbohydrate specify the configuration on the last chiral carbon atom (from C-1) in the Fischer projection formula. If the is written is written to to the right of that carbon the compound is a D-carbohydrate. If the the left it is an L-carbohydrate. for exampl ...
Chapter 25 Organic and Biological Chemistry
... • As with alkenes, the impetus for reaction is the replacement of -bonds with -bonds. ...
... • As with alkenes, the impetus for reaction is the replacement of -bonds with -bonds. ...
Ch14 Lecture
... are soluble in water. • Higher molecular weight alcohols (6 C’s or more) are not soluble in water. ...
... are soluble in water. • Higher molecular weight alcohols (6 C’s or more) are not soluble in water. ...
Chapter 22: Phenols. Alcohols contain an OH group bonded to an
... and stabilizes the negative charge through inductive effects ...
... and stabilizes the negative charge through inductive effects ...
231. - Department of Chemistry
... (c-C5H5)Fe⫹ in He bath gas at 0.35 Torr with a variety of inorganic ligands containing hydrogen, carbon, nitrogen, and oxygen. Previous measurements in our laboratory have shown that the presence of a cyclopentadienyl ligand has a dramatic effect on the reactivity of Fe⫹. For example, we have shown ...
... (c-C5H5)Fe⫹ in He bath gas at 0.35 Torr with a variety of inorganic ligands containing hydrogen, carbon, nitrogen, and oxygen. Previous measurements in our laboratory have shown that the presence of a cyclopentadienyl ligand has a dramatic effect on the reactivity of Fe⫹. For example, we have shown ...
Organic and Bio-Molecular Chemistry
... words, the orientation of the atoms in the space, requires further information. The rotation around single (σ) bonds is generally allowed, therefore a molecule such as palmitic acid, in which each C-C bond is a single bond, is like a piece of string that can be turned as we like and assume an almost ...
... words, the orientation of the atoms in the space, requires further information. The rotation around single (σ) bonds is generally allowed, therefore a molecule such as palmitic acid, in which each C-C bond is a single bond, is like a piece of string that can be turned as we like and assume an almost ...
13C NMR - Creighton Chemistry Webserver
... tells you the number of chemically nonequivalent CH 3 , CH2 , and CH carbons C do not appear–they must be identifed by comparison with the normal 13C NMR spectrum ways to present a DEPT 13C NMR spectrum: ...
... tells you the number of chemically nonequivalent CH 3 , CH2 , and CH carbons C do not appear–they must be identifed by comparison with the normal 13C NMR spectrum ways to present a DEPT 13C NMR spectrum: ...
Organic Chemistry
... Rules for naming branched alkanes Find the longest chain of carbons in the molecule or parent chain. (not necessarily a straight line) 2. Number the carbons in parent chain. Start at the end that will give the groups attached to the chain the ...
... Rules for naming branched alkanes Find the longest chain of carbons in the molecule or parent chain. (not necessarily a straight line) 2. Number the carbons in parent chain. Start at the end that will give the groups attached to the chain the ...
The Intensity of Ligand Absorption - TopSCHOLAR
... ring from the phosphorus atom and the degree of polarization of the phenyl rings by the metal ion of the complexes. The objective of this work was to determine what factors such as d-electron configuration, back donation, oxidation state on the metal ion, covalency, etc. influence the intensity of t ...
... ring from the phosphorus atom and the degree of polarization of the phenyl rings by the metal ion of the complexes. The objective of this work was to determine what factors such as d-electron configuration, back donation, oxidation state on the metal ion, covalency, etc. influence the intensity of t ...
lecture 3 - aldehydes and ketones
... Aldol reactions, like all carbonyl condensations, occur by nucleophilic addition of the enolate ion of the donor molecule to the carbonyl group of the acceptor molecule The addition intermediate is protonated to give an ...
... Aldol reactions, like all carbonyl condensations, occur by nucleophilic addition of the enolate ion of the donor molecule to the carbonyl group of the acceptor molecule The addition intermediate is protonated to give an ...
COMPLEXES WITH BIOLOGICALLY ACTIVE LIGANDS
... Among the different advances in this field, the possibility of using cyclophosphazene derivatives as ligands toward transition metal ions has attracted much interest, due to the interesting physico-chemical properties of such materials, mainly as inorganic polymers. 2-6 The cyclophosphazenes behave ...
... Among the different advances in this field, the possibility of using cyclophosphazene derivatives as ligands toward transition metal ions has attracted much interest, due to the interesting physico-chemical properties of such materials, mainly as inorganic polymers. 2-6 The cyclophosphazenes behave ...
L1 - Amines
... replaced by –R groups, the –R groups are treated a substituents. To name 2o, or 3o amines, list the alkyl substituents in alphabetical order (including di, tri, etc…) followed by the word amine Examples: ...
... replaced by –R groups, the –R groups are treated a substituents. To name 2o, or 3o amines, list the alkyl substituents in alphabetical order (including di, tri, etc…) followed by the word amine Examples: ...
16.18 Summary
... Problem 16.20 There is another oxygen-stabilized cation of m/z 87 capable of being formed by fragmentation of the molecular ion in the mass spectrum of sec-butyl ethyl ether. Suggest a reasonable structure for this ion. ...
... Problem 16.20 There is another oxygen-stabilized cation of m/z 87 capable of being formed by fragmentation of the molecular ion in the mass spectrum of sec-butyl ethyl ether. Suggest a reasonable structure for this ion. ...
1 - KFUPM Faculty List
... B) C2H5OH(aq) This is a dissolved polar molecule (an alcohol) and thus it is a non-electrolyte solution C) NH3(aq) This is a weak base solution and thus a weak electrolyte solution D) HCH3CO2(aq) This is a weak acid (acetic acid) solution, and thus a weak electrolyte solution E) C12H22O11(aq) This i ...
... B) C2H5OH(aq) This is a dissolved polar molecule (an alcohol) and thus it is a non-electrolyte solution C) NH3(aq) This is a weak base solution and thus a weak electrolyte solution D) HCH3CO2(aq) This is a weak acid (acetic acid) solution, and thus a weak electrolyte solution E) C12H22O11(aq) This i ...
PDF (chapter_8)
... interest was the possible dependence of mass-mobility correlations with the heavy atom (C, N, O) complements present in the molecular ion, comparing, for example, alkylated ammonium ions to abiotic amino acids (betaine and N,N-dimethylglycine). A modified TJ method for the ion-neutral interaction, t ...
... interest was the possible dependence of mass-mobility correlations with the heavy atom (C, N, O) complements present in the molecular ion, comparing, for example, alkylated ammonium ions to abiotic amino acids (betaine and N,N-dimethylglycine). A modified TJ method for the ion-neutral interaction, t ...
Homoaromaticity
Homoaromaticity in organic chemistry refers to a special case of aromaticity in which conjugation is interrupted by a single sp3 hybridized carbon atom. Although this sp3 center disrupts the continuous overlap of p-orbitals, traditionally thought to be a requirement for aromaticity, considerable thermodynamic stability and many of the spectroscopic, magnetic, and chemical properties associated with aromatic compounds are still observed for such compounds. This formal discontinuity is apparently bridged by p-orbital overlap, maintaining a contiguous cycle of π electrons that is responsible for this preserved chemical stability.The concept of homoaromaticity was pioneered by Saul Winstein in 1959, prompted by his studies of the “tris-homocyclopropenyl” cation. Since the publication of Winstein's paper, much research has been devoted to understanding and classifying these molecules, which represent an additional “class” of aromatic molecules included under the continuously broadening definition of aromaticity. To date, homoaromatic compounds are known to exist as cationic and anionic species, and some studies support the existence of neutral homoaromatic molecules, though these are less common. The 'homotropylium' cation (C8H9+) is perhaps the best studied example of a homoaromatic compound.