摘要
A tetranuclear Li2Cr2 acetylide precursor complex, [Li(Tp)crm(c=CSiMe3)2(/,t3-pz)]2· (n-pentane)2 (Tp = hydridotris(pyra- zolyl)borate, pz = pyrazolate) (1) has been synthesized and characterized. The X-ray structure analysis shows that the complex contains a Li2Cr2 core bridged by two ,u3-pyrazolates. The magnetic data exhibit the existence of weak antiferromagnetic in- teraction in the cluster.
A tetranuclear Li 2 Cr 2 acetylide precursor complex, [Li(Tp)CrⅢ (C≡CSiMe 3 ) 2 (μ3 -pz)] 2 ·(n-pentane) 2 (Tp = hydridotris(pyrazolyl)borate, pz = pyrazolate) (1) has been synthesized and characterized. The X-ray structure analysis shows that the complex contains a Li2Cr2 core bridged by two μ3 -pyrazolates. The magnetic data exhibit the existence of weak antiferromagnetic interaction in the cluster.
基金
financially supported by the National Natural Science Foundation of China (20801022, 21172084)
the Program for New Century Excellent Talents in University of China (NCET-10-0406)
the Program for Changjiang Scholars and Innovative Research Team in University (IRT0953)
Self-Determined Research Funds of CCNU from the Col- leges' Basic Research and Operation of MOE (CCNU09A02002, CCNU11C01002)
