TY - JOUR
T1 - Synthesis and characterization of five-coordinate gallium and indium complexes stabilized by tridentate, substituted pyrrole ligands
AU - Kuo, Pei Cheng
AU - Huang, Jui Hsien
AU - Hung, Chen Hsiung
AU - Lee, Gene Hsiang
AU - Peng, Shie Ming
PY - 2003/4
Y1 - 2003/4
N2 - Five-coordinate gallium and indium complexes stabilized by tridentate, substituted pyrrole ligands have been synthesized and characterized. The reaction of MCl3 with 1 equiv. of Li[NC4H2(CH2NMe2) 2-2,5] in diethyl ether affords [{NC4H2(CH2NMe2) 2-2,5}MCl2] [M = Ga (1), In (2)] in high yield. Reaction of 1 with 2 equiv. of MeLi in diethyl ether at -78 °C followed by heating to reflux for 30 min affords the alkylated product [{NC4H2(CH2NMe2) 2-2,5}GaMe2] (3). Similarly, the reaction of 2 with 2 equiv. of MeLi or nBuLi affords the dialkylated complexes 4 and 5, respectively. Complex 2 is a strong Lewis acid which readily absorbs H2O forming [{[C4H2N(CH2NMe2) 2-2,5]InCl2}2(μ-OH2)] (6). Complexes 3, 4, and 6 have been characterized by X-ray crystallography.
AB - Five-coordinate gallium and indium complexes stabilized by tridentate, substituted pyrrole ligands have been synthesized and characterized. The reaction of MCl3 with 1 equiv. of Li[NC4H2(CH2NMe2) 2-2,5] in diethyl ether affords [{NC4H2(CH2NMe2) 2-2,5}MCl2] [M = Ga (1), In (2)] in high yield. Reaction of 1 with 2 equiv. of MeLi in diethyl ether at -78 °C followed by heating to reflux for 30 min affords the alkylated product [{NC4H2(CH2NMe2) 2-2,5}GaMe2] (3). Similarly, the reaction of 2 with 2 equiv. of MeLi or nBuLi affords the dialkylated complexes 4 and 5, respectively. Complex 2 is a strong Lewis acid which readily absorbs H2O forming [{[C4H2N(CH2NMe2) 2-2,5]InCl2}2(μ-OH2)] (6). Complexes 3, 4, and 6 have been characterized by X-ray crystallography.
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U2 - 10.1002/ejic.200390187
DO - 10.1002/ejic.200390187
M3 - Article
AN - SCOPUS:0037391573
SP - 1440
EP - 1444
JO - Chemische Berichte
JF - Chemische Berichte
SN - 0009-2940
IS - 7
ER -