Isocyanide bonding

Insertion reactions of platinum(II) alkyl and aryl complexes (144, 153, 171), nucleophilic displacement of isocyanide from [Pt(PRj)2(CNCH3)2] (147) and additions of alcohols and related substances to isocyanides bonded to platinum (8, 9, 25, 33, 34, 100, 117) were discussed earlier. 

Only more recent investigations of organic isocyanide complexes of chromium are in this section, because general synthetic methods for metal isocyanide complexes, including mixed carbonyl isocyanides, and the nature of the metal-isocyanide bond are discussed in Sections... 

The generally accepted valence bond and molecular orbital (MO) approach to the bonding of metal isocyanides has been well described in Treichel s review (6), and has been used to rationalize (i) variations in IR stretching frequencies between bonded and nonbonded isocyanides, and (ii) the better Tt-acceptor qualities of aryl versus alkyl isocyanide groups (53,54). In valence bond theory the canonical forms involved in metal isocyanide bonds are... 

Harvey et al. studied the photophysical properties of macromolecules built on M-P and M-CN (isocyanide) bonds, including the metal in the backbone. (This topic is reviewed in Chapter 2. The presence of the metal atom associated with the porphyrin moiety is examined here. 

Despite the lack of direct NMR data for isocyanide sp carbons, NMR has proved a powerful probe in the study of metal-isocyanide bonding,... 

According to the valence bond theory, the following resonance (canonical) structures of the metal-isocyanide bond are possible ... 

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