Synthesis and Characterization of N,N‐Di‐substituted Acylthiourea Copper(II) Complexes
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Authors: | Su‐Yun Wu Xiao‐Ya Zhao Hai‐Pu Li Ying Yang Herbert W. Roesky |
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Affiliation: | 1. School of Chemistry and Chemical Engineering, Centre for Environment and Water Resource, Central South University, Lushannan Road 932, 410083 Changsha, P. R. China;2. Institut für Anorganische Chemie, Universit?t G?ttingen, Tammannstrasse 4, 37077 G?ttingen, Germany |
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Abstract: | A series of six N,N‐di‐substituted acylthiourea ArC(O)NHC(S)NRR′ ligands (denoted as HLn) [Ar = 1‐Naph: NRR′ = NPh2, HL1 ( 1 ); N(iPr)Ph, HL2 ( 2 ). Ar = Mes: NRR′ = NPh2, HL4 ( 3 ); N(iPr)Ph, HL5 ( 4 ); NEt2, HL6 ( 5 ). Ar = Ph: NRR′ = N(iPr)Ph, HL8 ( 6 )] were synthesized and characterized. These ligands were deprotonated to form CuII complexes through metathesis or combined redox reaction with copper halides. The structures of the complexes were investigated with single‐crystal X‐ray diffraction. The reaction of the 1‐naphthalene derivative HL1 ( 1 ) with CuBr in the presence of sodium acetate produced cis‐CuL12 ( 7 ), where the deprotonated ligand is bound to the CuII atom in a bidentate‐(O, S) coordination mode. Similarly treatment of HL2 ( 2 ) with NaOAc and CuCl resulted in the formation of the cis‐arranged product [cis‐CuL22 ( 8 )]. The reaction of mesityl derivative HL4 ( 3 ) and CuBr with and without the addition of NaOAc gave the cis‐CuL42 ( 9 ) and cis‐(HL4)2CuBr ( 10 ), respectively. In contrast, reaction of HL5 ( 4 ) and CuI in the presence of NaOAc resulted in trans‐CuL52 ( 11 ). Alternatively trans‐CuL62 ( 12 ) was obtained by the reaction of diethyl‐substituted HL6 ( 5 ) with CuCl2 in the absence of a base. |
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Keywords: | Acylthiourea Copper S ligands Configuration X‐ray diffraction |
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