Advances in Molecular Structure ResearchThis volume is the fourth in the series and offers both quality and breadth. As a whole it reflects two increasingly discernible trends in modern structural chemistry. One trend is that parallel to the ever increasing specialization of techniques, there is a strong interaction between the techniques. This interaction crosses the boundaries between various experiments, between the experiments and computations, experiments and theory, and organic and inorganic chemistry. The other trend is the ever increasing penetration of the most modern aspects of structural chemistry the rest of chemistry, making the demarkation of structural chemistry increasingly fuzzy which is the most welcome development from a structural chemist's point of view. |
From inside the book
Results 1-5 of 80
Page 2
... distances are almost constant for a given central atom , independent of the coordination number , bond angles , and bond lengths and the presence of other ligands . From these interligand distances a constant ligand intramolecular ...
... distances are almost constant for a given central atom , independent of the coordination number , bond angles , and bond lengths and the presence of other ligands . From these interligand distances a constant ligand intramolecular ...
Page 3
... intramolecular repulsions is still not generally recognized is because intramolecular distances are usually compared with the sum of the Bartell 1,3 radii . These radii are given in Table 1 Ligand Close - Packing Model 3.
... intramolecular repulsions is still not generally recognized is because intramolecular distances are usually compared with the sum of the Bartell 1,3 radii . These radii are given in Table 1 Ligand Close - Packing Model 3.
Page 4
... distances are essentially constant despite considerable variations in bond lengths and bond angles . Hargittai [ 7 ] has , for example , previously commented on the strikingly constant O --- O distance of 248-249 pm in a large number of ...
... distances are essentially constant despite considerable variations in bond lengths and bond angles . Hargittai [ 7 ] has , for example , previously commented on the strikingly constant O --- O distance of 248-249 pm in a large number of ...
Page 9
... distances remain constant at 226 pm . This is also the F --- F distance in many other XBF2 and XBF3 molecules and is ... distances have values close to the average value of 226 pm found for all the other molecules . Similarly , the F ...
... distances remain constant at 226 pm . This is also the F --- F distance in many other XBF2 and XBF3 molecules and is ... distances have values close to the average value of 226 pm found for all the other molecules . Similarly , the F ...
Page 10
... Distances in Some Molecules Containing BeF , BF , or CF , Groups A - F ( pm ) < FAF ( ° ) F --- F ( pm ) BeF3 BeF 149 ( 1 ) 120 ( 3 ) 258 ( 6 ) 155.4 ( 6 ) 109.5 253.8 ( 10 ) Average : 256 ( 2 ) F2B - F 130.7 120.0 226.4 F2B - OH 132.3 ...
... Distances in Some Molecules Containing BeF , BF , or CF , Groups A - F ( pm ) < FAF ( ° ) F --- F ( pm ) BeF3 BeF 149 ( 1 ) 120 ( 3 ) 258 ( 6 ) 155.4 ( 6 ) 109.5 253.8 ( 10 ) Average : 256 ( 2 ) F2B - F 130.7 120.0 226.4 F2B - OH 132.3 ...
Contents
43 | |
CHAPTER 3 HYDROGEN BONDING SYSTEMS IN ACID METAL SULFATES AND SELENATES | 79 |
CHAPTER 4 A CRYSTALLOGRAPHIC STRUCTURE REFINEMENT APPROACH USING AB INITIO QUALITY ADDITIVE FUZZY DENSITY F... | 115 |
CHAPTER 5 NOVEL INCLUSION COMPOUNDS WITH UREATHIOUREASELENOUREAANION HOST LATTICES | 151 |
CHAPTER 6 ROLES OF ZINC AND MAGNESIUM IONS IN ENZYMES | 227 |
CHAPTER 7 THE ELECTRONIC SPECTRA OF ETHANE AND ETHYLENE | 281 |
POSSIBLE ROLES OF PUTATIVE 23EPOXYOXEPINS AND PROBES FOR THEIR DETECTION | 319 |
CHAPTER 9 SOME RELATIONSHIPS BETWEEN MOLECULAR STRUCTURE AND THERMOCHEMISTRY | 343 |
INDEX | 373 |
Other editions - View all
Advances in Molecular Structure Research, Volume 4 Magdolna Hargittai,Istvan Hargittai No preview available - 1998 |
Common terms and phrases
acceptor acid Acta Cryst Acta Crystallogr AFDF alkynes anions band benzene binds bond angles bond lengths Buenker C-C bond calculated carbon carboxylate cations chains chalcogen channel Chem Chemistry cm¹ CO₂H coordination covalent crystal structure density matrix diffraction dimers distances donor double ribbon electron density energy enthalpy of formation enzyme ethane excited experimental functions fuzzy geometry ground-state H₂O Hargittai host lattice HSO4 hydrogen bonding system hydrogen bonds hydroxyl group inclusion compounds interactions ionic isomerization kcal/mol Kemnitz kJ mol-¹ layers LDG(K ligand lines represent hydrogen lone pair macromolecule magnesium magnesium ion metal hydrogen metal ion methyl mol¹ molecular nonbonding oxygen atoms Peyerimhoff Phys proteins quantum reaction represent hydrogen bonds selenates shown in Figure spectra spectrum symmetry Table terminal alkynes tetrahedra thiourea thiourea molecules transition Troyanov urea urea molecules vibrational water molecule wavefunction X-ray zinc ion
Popular passages
Page vii - Department of Chemistry The Chinese University of Hong Kong Shatin New Territories Hong Kong Weigin Liu Department of Medicinal Chemistry Beijing Medical University Beij ing China Karen L.
Page 340 - Biol. Chem. 1976, 250, 5227. 50. Inubushi, T.; Yonetani, T. Methods Enzymol. 1981, 76. 88. 51. Makino, R.; lizuka, T.; Sakaguchi, K.; Ishimura, Y. Oxygenases and Oxygen Metabolism', Nozaki, M.; Yamamoto, S.; Ishimura, Y; Coon, MJ; Ernster, L.; Estabrook, WR, Eds.; Academic: New York, 1982; p 467. 52. Giacometti, GM; Da Ros, A.; Antonini, E.; Brunori, M. Biochemistry 1975. 14, 1584. 53. Giacometti, GM; Ascenzi, P.; Brunori, M.; Rigatti, G.; Giacometti, G.; Bolognesi, MJ Mol. Biol. 1981.
Page 149 - Shape in Chemistry: An Introduction to Molecular Shape and Topology, VCH Publishers. New York, 1993.
Page 340 - Lessie, TG, and Gaffney, T. (1986). Catabolic potential of Pseudomonas cepacia. In "The Bacteria: A Treatise on Structure and Function, Vol. X. The Biology of Pseudomonas" (JR Sokatch and LN Ornston, eds.), pp.