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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2002     Display Documents



  history
ID: 7379.0, MPI für Festkörperforschung / FKF Publikationen 2002
New bifunctional silazanes and their condensation reactions: 3-Methyl-2,2,4,4-tetrakis(methylamino)-1-phenyl-[1,3,2,4]diazadisiletidine, 1,3-dichloro-2-phenyl-1, 1,3,3-tetrakis(dimethylamino)disilazane, 3-methyl-2,2,4,4-tetrakis(dimethylamino)-1-phenyl-[1,3,2,4]diazadisiletidine and 2,2,4,4-tetrakis(dimethylamino)-1-phenyl-[1,3,2,4]diazadisiletidine
Authors:Bzik, S.; Jansen, M.
Language:German
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Zeitschrift für Naturforschung B
Volume:57
Issue / Number:1
Start Page:83
End Page:91
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:3-Methyl-2,2,4,4-tetrakis(methylamino)-1-phenyl-
[1,3,2,4]diazadisiletidine (1), 1,3-Dichloro-2-phenyl-1,1,3,3-
tetrakis(dimethylamino)disilazane (2), 3-Methyl-2,2,4,4-
tetrakis (dimethylamino)-1-phenyl-[1,3,2,4]diazadisiletidine
(3) and 2,2,4,4-Tetrakis(dimethylamino)-1-phenyl-
[1,3,2,4]diazadisiletidine (4) have been synthesized as
potential precursors for the preparation of porous oxygen-free
solids. All compounds were characterized by crystal structure
109.4(1)degrees and Z = 4 (R-1 = 8.7%, wR(2) = 20.7%, 1545
independent reflections). 2 crystallizes triclinically, P (1)
over bar, a = 8.011(2), b = 8.424(2), c = 16.082(2) Angstrom,
alpha = 91.08(1)degrees, beta = 93.89(1)degrees, gamma = 105.71
(1)degrees and Z = 2 (R-1 = 3.0%, wR(2) = 7.9%, 3657
independent reflections). 3 crystallizes monoclinically,
P2(1)/c, a 29.746(2), b = 21.590(2), c = 13.331(2) Angstrom,
beta = 102.95(1)degrees and Z = 16 (R-1 = 4.3%, wR(2) = 9.3%,
6667 independent reflections). 4 crystallizes triclinically, P
(1) over bar, a = 10.450(1), b = 10.467(1), c = 17.948(1)
Angstrom, alpha = 97.43(1)degrees, beta = 98.73(1)degrees,
gamma = 90.08(1)degrees and Z = 4 (R-1 = 10.2%, wR(2) = 25.8%,
3586 independent reflections). Polycondensation of 1 and
ammonolysis and polycondensation of 2 yield amorphous solids
with different porosities.
Free Keywords:cross linking; silazanes
External Publication Status:published
Document Type:Article
Communicated by:Michaela Asen-Palmer
Affiliations:MPI für Festkörperforschung
External Affiliations:; Max Planck Inst Festkorperforsch, Heisenbergstr 1, D-70569 Stuttgart, Germany
; Univ Bonn, Inst Anorgan Chem, D-53121 Bonn, Germany
Identifiers:ISI:000174273300010
ISSN:0932-0776
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