1,4-二𫫇烷合二氯化锗

1,4-二𫫇烷合二氯化锗是一种配位化合物，化学式为GeCl
2(C
4H
8O
2)，其中C
4H
8O
2为1,4-二𫫇烷。它是白色固体，在合成中可用作二价锗的来源。

合成与结构[编辑]

它可由四氯化锗在二𫫇烷中通过三丁基氢化锡还原制得：^[1]

GeCl
4 + 2 Bu
3SnH + C
4H
8O
2 → GeCl
2(O
2C
4H
8) + 2 Bu
3SnCl + H
2

其它氢硅烷（英语：Hydrosilane）也可用作这一反应的还原剂。^[2]

它具有链状聚合结构，锗采用SF₄构型，顺式Cl配体（∠Cl-Ge-Cl = 94.4°）和轴向的桥联二𫫇烷的氧与之配位。Ge-O键和Ge-Cl键的键长分别为2.40 Å、2.277 Å。^[3]

^ Fjeldberg, Torgny; Haaland, Arne; Schilling, Birgitte E. R.; Lappert, Michael F.; Thorne, Andrew J. Subvalent Group 4B Metal Alkyls and Amides. Part 8. Germanium and Tin Carbene Analogues MR₂[M = Ge or Sn, R = CH(SiMe₃)₂]: Syntheses and Structures in the Gas Phase (Electron Diffraction); Molecular-Orbital Calculations for MH₂ and GeMe₂. Journal of the Chemical Society, Dalton Transactions. 1986, (8): 1551. doi:10.1039/DT9860001551.
^ Roskamp, Carrie A.; Roskamp, Eric J. Germanium Dichloride-Dioxane Complex. Encyclopedia of Reagents for Organic Synthesis. 2001. ISBN 0471936235. doi:10.1002/047084289X.rg002.
^ Leites, L.A.; Zabula, A.V.; Bukalov, S.S.; Korlyukov, A.A.; Koroteev, P.S.; Maslennikova, O.S.; Egorov, M.P.; Nefedov, O.M. Experimental and Theoretical Study of Vibrational Spectra and Structure of Dihalogermylene and Dihalostannylene Complexes with 1,4-Dioxane and Triphenylphosphine. Journal of Molecular Structure. 2005, 750 (1–3): 116–122. Bibcode:2005JMoSt.750..116L. doi:10.1016/j.molstruc.2005.04.015.