Ligand names, table

A few years ago, a new class of ligands namely the sulfonated phosphites (for examples see Table 7, 132, 133) was described.283 287 They show remarkable stabilities in water compared to conventional phosphites such as P(OPh)3 and rhodium catalysts modified with 132 exhibited much higher catalytic activities in the hydroformylation of 1-tetradecene than conventional Rh/P(OPh)3 or Ph/PPh3 catalysts even at lower reaction temperatures.285,286 Sulfonated phosphite ligands may play a role in the emerging field of biphasic catalysis in ionic liquids15 22 or in combination with membrane separation of the metal complexes of these bulky ligands. 

Additive nomenclature1 is based on the combination of element names or roots of element names and/or ligand names. The simplest and oldest additive nomenclature is binary nomenclature that expresses two components, e.g. sodium chloride. The cationic or electropositive portion of the compound expressed in a binary name is the element name unchanged or a group name ending in -ium , and the anionic or electronegative portion of a compound expressed in the name ends in -ide, -ite or -ate. The proportions of cations and anions in neutral compounds are indicated by Stock numbers or simple or multiplicative prefixes (see Section 3.3.2). Additive nomenclature denotes composition. For examples see Table 1. 

Neutral ligand names, with the exception of NH3 (ammine), H20 (aqua), CO (carbonyl) and NO (nitrosyl), are expressed in coordination nomenclature by their unmodified names. The ligand names for all neutral ligands except for the four listed above are enclosed in punctuation (parentheses - ( ), square brackets - [ ], and braces - ). For examples see Table 3. 

Table 4 Anionic Inorganic Ligand Names Formula Systematic name Common name...

Bridging is indicated by the i prefix before the bridging ligand name, and unsymmetrical bridging by multiatom bridges is denoted by the ligating atom notation and central atom locant number separated by a colon x-(hydroxyamido)-2idV lK0-. For examples see Table 18. 

Whereas each of these above-described new compositions offered significant advantages over existing CVD sonrces, each also snffered some limitation that prohibited widespread exploration in the preparation of thin films (Table 15). In a radical departure from more traditional rontes, the preparation of a new class of ligands, namely the jS-diketo ethers, and their ntilization in the formation of novel families of both main gronp and transition element complexes, has been investigated. ... 

The systematic organic ligand names given in Table VII are now in accord with anion names derived by the rules of Ref. 21. In a number of cases they differ from the names given as systematic in Ref. 11. 

The central atom names are listed after the ligand names. The multiplicative prefix di is used where the central atoms are the same element. Otherwise, the order of the central atom names is obtained using Table VI. The order of the central atom names is reflected in the numbering employed with the K symbols. The ending ate is added if the dinuclear compound is an anion, and a radical dot may be added for radicals. In the case of two different central atoms, the two names are cited inside parentheses and ate is added outside the parentheses. 

Ligand names are ordered alphabetically. Central atom names are ordered according to their position in Table VI. 

Table VII contains the names of common organic ligands whereas Table IX contains the names...

Table IR-10.4 Ligand names for unsaturated molecules and groups...

To assist in recognition of polydenticity in a written name, the number of any polydentate ligands (where >2 are present) >2 bound to a metal ion is represented itself by a sequence of different prefixes (inserted immediately in front of the relevant ligand name) to those used for simple monodentate ligands, as given below (Table A.2). The need to use these only arises for written names. 

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