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Intramolecularly Stabilized Heavier Tetrylenes: From Monodentate to Bidentate Ligands
Author(s) -
Cabeza Javier A.,
GarcíaÁlvarez Pablo,
Polo Diego
Publication year - 2016
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201500855
Subject(s) - chemistry , denticity , intramolecular force , lone pair , ligand (biochemistry) , atom (system on chip) , ring (chemistry) , group (periodic table) , stereochemistry , crystallography , transition metal , molecule , crystal structure , receptor , organic chemistry , catalysis , biochemistry , computer science , embedded system
Intramolecularly stabilized heavier tetrylenes (HTs) are group 14 metalylenes featuring at least one intramolecular D→E interaction between a two‐electron‐donor group (D) and the group 14 atom (E = Si, Ge, Sn or Pb). With regard to their coordination chemistry, they normally bind to transition metals as monodentate ligands through the lone electron pair of their E atom; however, the donor group D initially involved in their internal stabilization can sometimes migrate from the E atom to the transition metal. This ring‐expansion process transforms the original monodentate (κ 1 E ) ligand into a bidentate one (κ 2 E , D ) and enhances the stability of the resulting complex. This review collects and discusses the hitherto known reactions involving this ligand transformation, also shedding light on the factors that make it possible.