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Chemistry structure

The previous chapter described the bonding principles responsible for the energetics and structure of coordination compounds. In this chapter the resulting structures will be examined in more detail with particular regard to the existence of various coordination numbers and molecular structures, and the effect of these structures on their chemical and physical properties. [Pg.472]

The coordination numbers of metal ions range from I, as in ion pairs such as Na+CI in the vapor phase, to 12 in some mixed metal oxides. The lower limit, I, is barely within the realm of coordination chemistry, since the Na+CI ion pair would not normally be considered a coordination compound, and there are few other examples. Likewise, the upper limit of 12 is not particularly important since it is rarely encountered in discrete molecules, and the treatment of solid crystal lattices such as hexagonal BaTiOj and perovskite1 as coordination compounds is not done frequently. The lowest and highest coordination numbers found in typical coordination compounds are 2 and 9 with the intermediate number 6 being the most important. [Pg.472]

We have seen in Chapter 4 that the coordination number of ions in lattices is related lo the ratio of the radii of the ions. The same general principles apply to coordination compounds, especially when a single coordination number, such as 4, has two common geometries—tetrahedral and square planar. An extended list of radius ratios is given in Table 12.1. [Pg.472]

As mentioned above, ion pairs in the gas phase may be considered as examples of coordination number I. There are a few other examples known. For instance, the aryl radical derived from the highly slerically hindered 1,3,5-triphenylbenzene, forms one-to-one2 oiganometallic compounds of the type CuC6H2(CAH3)] and AgC l I2(C6H5)3, as shown in the margin. [Pg.472]

1 Note, however, that some of the properties of metal ions in these systems can be described in terms of coo nil nation chemistry. Sec Chapter 7. [Pg.472]

Few complex tons are known with a coordination number of 2. They are generally limited to the +1 ions of the Group IB (II) metals and the closely related Hg(ll) species (c/ ). Examples are [Cu(NHj),], [Ag(NH3)2], [CuClJ, [AgCUJ , [AuCy, [Ag(CN),] , [Au(CN)2] , and [Hg(CN)jJ. Even these may react with additional ligands to form higher-coordinate complexes such as  [Pg.473]


P. J. Bruna, Computational Chemistry Structure, Interactions and Reactivity Part A S. Fraga, Ed., 379, Elsevier, Amsterdam (1992). [Pg.221]

Periodic acid oxidation (Section 15 12) finds extensive use as an analytical method m carbohydrate chemistry Structural information is obtained by measuring the number of equivalents of periodic acid that react with a given compound and by identifying the reaction products A vicinal diol consumes one equivalent of penodate and is cleaved to two carbonyl compounds... [Pg.1059]

Chemistry, structure-activity relationships, and prospects of semisynthetic glycopeptides (including cyclic ones) 97F313. [Pg.238]

H. Sakurai (ed.), Organosilicon and Bioorganosilicon Chemistry—Structure, Bonding, Reactivity, and Synthetic Application. Ellis Horwood. Chichester, 1985. [Pg.97]

The chemistry, structure and metal-metal bonding in compounds of rhodium(II). T. R. Felthouse, Prog. Inorg. Chem., 1982, 29, 73-166 (353). [Pg.31]

Dae S. Organic Sulfur Chemistry Structure and Mechanism, CRC Press, London, 1991. [Pg.95]

Eanes, E.D. 1979 Enamel apatite chemistry, structure and properties. Journal of Dental Research Special Issue B 829-836. [Pg.112]

Chemistry, Structure, and Bonding of Zintl Phases and Ions Kauzlarich, S.M.,... [Pg.181]

Chan, M.C.-W. and Che, C.-M. (1998) Application of 2,6-diphenylpyridine as a tridentate [C N C] dianionic ligand in organogold(III) chemistry. Structural and spectroscopic properties of mono- and binuclear transmetalated gold(III) complexes. Organometallics, 17, 3505-3511. [Pg.281]

Wakselman, M. Mazaleyrat, J.-P. Lin, R. C. Xie, J. Vigier, B. Vilain, A. C. Fesquet, S. Boggetto, N. Reboud-Ravaux, M. Design, synthesis and study of a selective cyclopeptidic mechanism-based inhibitor of human thrombin. In Peptides Chemistry, Structure... [Pg.381]

S. M. Kauzlarich (ed.), Chemistry, Structure and Bonding ofZintl Phases and Ions. Wiley-VCH, 1996. [Pg.253]

Hippe Z (1991) Artificial intelligence in chemistry. Structure elucidation and simulation of organic reactions. Elsevier, Amsterdam... [Pg.66]

Barondeau DP, Kassmann CJ, Tainer JA, Getzoff ED (2006) Understanding GFP posttrans-lational chemistry structures of designed variants that achieve backbone fragmentation, hydrolysis, and decarboxylation. J Am Chem Soc 128 4685-4693... [Pg.375]

Merck Research Laboratories, Discovery Predinical Sciences, Global Chemistry—Structure Elucidation Group, Summit, New Jersey, 07901, USA... [Pg.215]

Combining Metal and Non-Metal Chemistry Structures and Activities. 176... [Pg.125]

Partitioning of carbocations between addition of nucleophiles and deprotonation, 35, 67 Perchloro-organic chemistry structure, spectroscopy and reaction pathways, 25, 267 Permutational isomerization of pentavalent phosphorus compounds, 9, 25 Phase-transfer catalysis by quaternary ammonium salts, 15, 267 Phosphate esters, mechanism and catalysis of nucleophilic substitution in, 25, 99 Phosphorus compounds, pentavalent, turnstile rearrangement and pseudoration in permutational isomerization, 9, 25... [Pg.339]

From the viewpoint of structural chemistry, structure and bonding lie at the heart of rational syntheses that have already contributed to many significant scientific advances in inorganic chemistry and material chemistry, and especially to the discovery of some functional materials. Naturally the first step to novel functional material is synthesis , and in many cases exploratory synthesis seems to be the only workable route to new compound. However, rational synthesis will surely make property-oriented exploration more fruitful and pleasing. [Pg.9]

Kauzlarich SM (ed) (1996) Chemistry, structure, and bonding of zintl phases and ions. VCH, New York... [Pg.49]

Gray, H. B., Stifel, E. I., Valentine, J. S., and Bertini, I., Eds. (2006). Biological Inorganic Chemistry Structure and Reactivity. University Science Books, Sausalito, CA. [Pg.813]


See other pages where Chemistry structure is mentioned: [Pg.313]    [Pg.850]    [Pg.373]    [Pg.101]    [Pg.114]    [Pg.171]    [Pg.181]    [Pg.192]    [Pg.206]    [Pg.275]    [Pg.3]    [Pg.5]    [Pg.14]    [Pg.177]    [Pg.179]    [Pg.492]    [Pg.335]    [Pg.49]    [Pg.285]   
See also in sourсe #XX -- [ Pg.8 ]




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