1,4-二噁烷合二氯化鍺

1,4-二噁烷合二氯化鍺是一種配位化合物，化學式為GeCl
2(C
4H
8O
2)，其中C
4H
8O
2為1,4-二噁烷。它是白色固體，在合成中可用作二價鍺的來源。

合成與結構[編輯]

它可由四氯化鍺在二噁烷中通過三丁基氫化錫還原製得：^[1]

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

其它氫硅烷（英語：Hydrosilane）也可用作這一反應的還原劑。^[2]

它具有鏈狀聚合結構，鍺採用SF₄構型，順式Cl配體（∠Cl-Ge-Cl = 94.4°）和軸向的橋聯二噁烷的氧與之配位。Ge-O鍵和Ge-Cl鍵的鍵長分別為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.