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What Do We Know about the Metal‐Metal Bond?
Author(s) -
Vahrenkamp Heinrich
Publication year - 1978
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.197803793
Subject(s) - metal , nucleophile , reagent , bond order , electrophile , oxidizing agent , metallic bonding , chemistry , triple bond , chemical bond , single bond , bond , computational chemistry , inorganic chemistry , group (periodic table) , crystallography , double bond , bond length , molecule , polymer chemistry , organic chemistry , catalysis , finance , economics
Almost all main group and subgroup metals are able to form metal‐metal bonds. The bond order ranges from weak interaction to a quadruple bond, and the degree of aggregation from a dinuclear entity to a three‐dimensional network. In spite of numerous physicochemical studies, not all aspects of the metal‐metal bond are understood. The ability of metal‐metal linked polynuclear complexes to serve as a reservoir for missing or excess electrons enables them to react both with nucleophilic or reducing reagents and with electrophilic or oxidizing reagents. The intermediate position occupied by clusters between simple complexes and the bulk metal is of theoretical and practical significance.