...3Cl_3]--《Acta Chimica Sinica(English Edition)》1985年04期

来自 : www.cnki.com.cn/Article/CJFDTo 发布时间：2021-03-25

【摘要】：正 The title compound was prepared by the oxidation of MoCl_3 in liquid phase.Thecrystal belongs to the orthorhombic system with space group D_(2h)~(16)-Pmnb and unit cell parameters:a=11.403(1),b=12.345(2),c=14.292(2)■;V=2011.8 ■~3;Z=4,D_c=2.396g/cm~3.Altogether 2303independent reflections were collected on a CAD-4 four-circle diffractometer with Mo Kα radiationin range 2°≤θ≤27°.The crystal structure was solved by heavy-atoms method and refined byfull-matrix least-squares technique to final discrepancy factors R=0.050 and R_w=0 056 for 1513reflections of I≥3σ(I).The configuration of the cluster anion was characterized to be of the sameM1 type structure as presented in the previous paper.The average bond lengths of Mo-Mo andMo-(μ_3-O)are 2.577 ■ and 1.982 ■ respectively.In addition,the effects of bridging atoms,otherligands and bond orders on Mo-Mo bonds are discussed briefly.
(2)■;V=2011.8 ■~3;Z=4,D_c=2.396g/cm~3.Altogether 2303independent reflections were collected on a CAD-4 four-circle diffractometer with Mo K...合一合一The preparation and crystal structure of trinuclear molybdenum compound(Me