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Chalcogen‐Pnictogen Complexes of Anionic N‐Heterocyclic Carbenes with a Weakly Coordinating Borate Moiety
Author(s) -
Ho Luong Phong,
Tamm Matthias
Publication year - 2022
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.202200090
Subject(s) - chemistry , pnictogen , moiety , chalcogen , carbene , medicinal chemistry , ligand (biochemistry) , lithium (medication) , metathesis , salt metathesis reaction , boron , stereochemistry , polymer chemistry , organic chemistry , catalysis , medicine , biochemistry , physics , superconductivity , receptor , polymer , quantum mechanics , polymerization , endocrinology
Chalcogen‐pnictogen dihalide complexes which bear an anionic N‐heterocyclic carbene ligand with a tethered weakly coordinating borate moiety (WCA‐IDipp, WCA=B(C 6 F 5 ) 3 , IDipp=1,3‐bis(2,6‐diisopropyphenyl)imidazolin‐2‐ylidene) were isolated and fully characterized. The metathesis reaction between the lithium salts [{(WCA‐IDipp)E}Li(toluene)] (E=S, Se) and pnictogen trihalides E′X 3 (E=P, As, Sb; X=Cl, Br) afforded the complexes of the general type (WCA‐IDipp)E−E′X 2 (E=S, Se; E=P, As, Sb; X=Cl, Br). In contrast, lithium chloride elimination was not observed with BiCl 3 under the same reaction conditions and instead, the lithium complexes [{(WCA‐IDipp)E−BiCl 3 }Li(thf) 4 ] (E=S, Se) were obtained. However, the corresponding bismuth dichloride derivatives (WCA‐IDipp)E−BiCl 2 were accessible from the reaction of (WCA‐IDipp)ESiMe 3 with BiCl 3 upon Me 3 SiCl elimination.