@article{TackeMuehleisen1994,
  author    = {Tacke, Reinhold and M{\"u}hleisen, M.},
  title     = {Bis[benzilato(2-)-O\(^1\),O\(^2\)][2-(dimethylammonio)ethoxy]silicate: synthesis and structural characterization of a zwitterionic \(\lambda^5\)Si-silicate with a SiO\(_5\) framework},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64400},
  year      = {1994},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{TackeMuehleisenJones1994,
  author    = {Tacke, Reinhold and M{\"u}hleisen, M. and Jones, P. G.},
  title     = {Das erste zwitterionische, optisch aktive Disilicat mit pentakoordiniertem Silicium},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64343},
  year      = {1994},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {de}
}
@article{TackeMuehleisen1994,
  author    = {Tacke, Reinhold and M{\"u}hleisen, M.},
  title     = {Hexacoordinate silicon in a compound with an F\(_5\)SiC unit},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64378},
  year      = {1994},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{TackeMuehleisen1994,
  author    = {Tacke, Reinhold and M{\"u}hleisen, M.},
  title     = {Hexakoordiniertes Silicium in einer molekularen Verbindung mit einer F\(_5\)SiC-Einheit},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64365},
  year      = {1994},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {de}
}
@article{MuehleisenTacke1994,
  author    = {M{\"u}hleisen, M. and Tacke, Reinhold},
  title     = {meso-[1,4-Piperaziniumdiylbis(methylene)]bis{bis[2-methyllactato(2-)-O1,O2]silicate} octahydrate: synthesis and crystal structure analysis of a zwitterionic dispirocyclic \(\lambda^5\)Si,\(\lambda^5\)Si'-disilicate},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64396},
  year      = {1994},
  abstract  = {The zwitterionic dispirocyclic \(\lambda^5\)Si,\(\lambda^5\)Si'-disilicate meso-[1 ,4-piperaziniumdiylbis( methylene)]bis{ bis[ 2-methyllactato(2-)-O\(^1\),O\(^2\)]silicate} octahydrate (6-8H\(_2\)O) was synthesized by reaction of 1,4-bis[(trimethoxysilyl}methyl] piperazine (8) with 2-methyllactic acid (molar ratio 1:4) in water/acetone (yield 82\%). The molecular dinuclear silicon(IV) complex 6 contains two pentacoordinate (formally negatively charged) silicon atoms and two tetracoordinate (formally positively charged) nitrogen atoms. The crystal structure of 6•8H20 was studied by X-ray diffraction.},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{TackeMuehleisenJones1994,
  author    = {Tacke, Reinhold and M{\"u}hleisen, M. and Jones, P. G.},
  title     = {The first zwitterionic, optically active disilicate with pentacoordinate silicon},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64358},
  year      = {1994},
  abstract  = {No abstract available},
  subject      = {Anorganische Chemie},
  language  = {en}
}
@article{MuehleisenTacke1994,
  author    = {M{\"u}hleisen, M. and Tacke, Reinhold},
  title     = {Twofold deprotonated citric acid as a bidentate ligand of pentacoordinate silicon: synthesis and structural characterization of the zwitterionic \(\lambda_5\)Si-spirosilicate bis[citrato(2-)-O\(^3\),O\(^4\)][(dimethylammonio)methyl]silicate hydrate},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-64388},
  year      = {1994},
  abstract  = {The zwitterionic \(\lambda_5\) Si-spirosilicate bis[ citrato(2-)-0\(^3\) ,0\(^4\) )[ ( dimethylammonio) methyl]silicate (4) was synthesized by reaction of (MeO)\(_3\)SiCH\(_2\)NMe\(_2\) (3) with citric acid (molar ratio 1 :2) in acetonitrile at room temperature and isolated, after crystallization from water, as the hydrate 4 · H\(_2\)O (yield 81 \%). The crystal structure of 4 · H\(_2\)O was studied by single-crystal X-ray diffraction. The alcoxide oxygen atoms and central carboxylate oxygen atoms of two citrato(2-) ligands and one carbon atom coordinate to the silicon atom of 4 · H\(_2\)O. The coordination polyhedron around the pentacoordinate silicon atom (SiO\(_4\)C framework) can be described as a distorted trigonal bipyramid, the two carboxylate oxygen atoms occupying the axial sites. The \(\lambda_5\) Si~silicon(IV) complex 4 also exists in solution (DMSO, H\(_2\)O).},
  subject      = {Anorganische Chemie},
  language  = {de}
}