Construction of Symmetric and Asymmetric Mo/S/Cu Clusters from a Cluster Precursor [Et4N](2)[(edt)(2)Mo2S2(mu-S)(2)] (edt = Ethanedithiolate)
Zhen-Hong Wei, Hong-Xi Li, Wen-Hua Zhang, Zhi-Gang Ren, Yong Zhang, Jian-Ping Lang, Brendan F Abrahams
INORGANIC CHEMISTRY | AMER CHEMICAL SOC | Published : 2008
Treatment of [Et 4N] 2[(edt) 2Mo 2S 2(mu-S) 2] ( 1) (edt = ethanedithiolate) with equimolar CuBr afforded an anionic hexanuclear cluster [Et 4N] 2[(edt) 2Mo 2(mu-S) 3(mu 3-S)Cu] 2.2CH 2Cl 2 ( 2.2CH 2Cl 2). On the other hand, reactions of 1 with 2 equiv of CuBr in the presence of 1,2-bis(diphenylphosphino)methane (dppm) and pyridine (Py) ligands gave rise to two neutral tetranuclear clusters [(edt) 2Mo 2O 2(mu-S) 2Cu 2(dppm) 2] ( 3) and [(edt) 2Mo 2O(mu 3-S)(mu-S) 2Cu 2(Py) 4] ( 4), respectively. The reaction of 1 with 2 equiv of CuBr followed by the addition of a mixture of dppm and Py (molar ratio = 1:2) yielded another neutral tetranuclear cluster [(edt) 2Mo 2(mu-S) 2(mu 3-S) 2Cu 2(dppm)(P..View full abstract
Awarded by National Natural Science Foundation of China
Awarded by Doctoral Program of Higher Education
This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 20525 101 and 20871088), the Specialzed Research Fund for the Doctoral Program of Higher Education (Grant No. 20050285004), the State Key Laboratory of Organometallic Chemistry of Shanghai Institute of Organic Chemistry (2008-25). and the "SooChow Scholar" Program and Program for Innovative Research Team of Suzhou University. The authors also thank Prof. J. L. Zou at NanJing University for his help in measuring the circular dichroism of 5. We are grateful to the reviewers and editors for their helpful suggestions.