Boranate und Boranato-metallate. III. Boranatozinkate der Alkalimetalle |
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| Authors: | Heinrich Nth Egon Wiberg Ludwig P Winter |
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| Institution: | Heinrich Nöth,Egon Wiberg,Ludwig P. Winter |
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| Abstract: | The reaction of zinc halides (ZnCl2, ZnBr2) or Zn(BH4)2 with LiBH4 or NaBH4 in ether or tetrahydrofurane yields LiZn(BH4)3, Li2Zn(BH4)4 or NaZn(BH4)3 respectively. The latter complex is also obtained by the reaction of NaZn(OCH3)3 or Na2Zn(OCH3)4 with diborane. Octakis(tetrahydridoborato)-trizincate K2Zn3(BH4)8 and BaZn3(BH4)8 are formed by treating Zn(BH4)2 with KBH4 or Ba(BH4)2. The 11B-nmr- and ir-spectra of the new complexes are recorded and discussed in terms of double hydrogen bridge bonding of BH4 groups to the central zinc atom. |
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