Synthesis,characterization, and molecular structure of the quadruply bonded ditungsten(ll) complex,W2Cl4(dppm)2 |
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| Institution: | 1. Energy Materials & Surface Science Laboratory, Solar Energy Research Center, School of Chemical Engineering, Chonbuk National University, Jeonju 54896, Republic of Korea;2. Advanced Materials and Devices Laboratory, Jeongeup Industry-Academic Cooperation Support Centre, Jeongeup Campus, Chonbuk National University, Jeonju 56212, Republic of Korea;3. New & Renewable Energy Material Development Center (NewREC), Chonbuk National University, Jeonju, Republic of Korea;4. Korea Basic Science Institute (KBSI), 169-148 Gwahak-ro, Yuseong-gu, Daejon 34133, Republic of Korea |
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| Abstract: | The reaction of W2Cl4P(n-Bu)3]4 with bis(diphenylphosphino)methane (dppm) affords the highly air-sensitive material, W2Cl4(dppm)2, which has been characterized by IR and visible spectroscopy, and by X-ray crystallography. The compound crystallizes in the centrosymmetric space group C2/c with the following parameters: a = 17.298(3); b = 17.011- (2); c = 18.413(2) Å; β = 98.93(2); V = 5352(2) Å3; Z = 4. The molecule is positioned about a C2 axis which allows for a net torsion angle of 17.25° down the WW vector. This does not seem to significantly effect the WW bond distance (2.269(1) Å) relative to other quadruply bonded ditungsten species. |
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