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Planar Tetracoordinate Carbon Atoms in M 4 C Square Sheets (M = Ni, Pd, and Pt) Sandwiched between the Large π‐Coordinating Ligands [C 8 H 8 ] 2– and [C 9 H 9 ] –
Author(s) -
Guo JinChang,
Li SiDian
Publication year - 2010
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.201000620
Subject(s) - tetracoordinate , chemistry , crystallography , ligand (biochemistry) , carbon fibers , planar , metal , stereochemistry , coordination complex , organic chemistry , materials science , biochemistry , receptor , computer graphics (images) , composite number , computer science , composite material
Using the strategy of transition metal coordination together with that of large π‐coordinating ligand complexation for planar tetracoordinate carbon (ptC) atoms, we present in this work a systematical DFT investigation on the possibility of ptC centers in M 4 C square sheets sandwiched in [C n H n ]M 4 C[C n′ H n′ ] complexes (M = Ni, Pd, Pt; n , n′ = 8, 9) with the planar π‐coordinating ligands [C 8 H 8 ] 2– and [C 9 H 9 ] – . Introduction of a ptC center into an M 4 square sheet to form four effective ptC–M bonds helped to stabilize the [C n H n ]M 4 C[C n′ H n′ ] complexes thermodynamically, and the π‐coordinating [C 8 H 8 ] 2– and [C 9 H 9 ] – ligands were found to match the M 4 C middle decks both geometrically and electronically. Planar tetracoordinate boron (ptB) and nitrogen (ptN) behave similarly to ptC in these sandwich structures. These model sandwich complexes invite experimental syntheses and characterizations in order to open up a new area in coordination chemistry for planar tetracoordinate carbon and other non‐metal atoms.