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Lah, Myoung Soo
Nanoporous Materials Lab
Research Interests
  • Metal-Organic Frameworks (MOFs)
  • Crystal Engineering
  • Supramolecular coordination chemistry

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Solid-state structure and condensation reaction of (triphenylmethyl)silanetriol

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Title
Solid-state structure and condensation reaction of (triphenylmethyl)silanetriol
Author
Kim, JHHan, JSLee, MEMoon, DHLah, Myoung SooYoo, BR
Issue Date
2005-03
Publisher
ELSEVIER SCIENCE SA
Citation
JOURNAL OF ORGANOMETALLIC CHEMISTRY, v.690, no.5, pp.1372 - 1378
Abstract
(Triphenylmethyl)silanetriol [1, (Ph3C)Si(OH)3] was obtained in 98% yield by the hydrolysis of (triphenylmethyl)trichlorosilane with ice-water in diethyl ether. Single crystal of [1 • acetone] for X-ray crystallographic determination was grown from a saturated acetone solution. In the single crystal X-ray structure analysis, the silanetriol 1 crystallizes in the centrosymmetric triclinic space group with two independent molecules in the asymmetric unit. Two independent molecules of the silanetriols 1 interact with each other and with acetones by intermolecular hydrogen bondings. Such hydrogen-bonding interactions lead to a one-dimensional columnar polymeric tube. Finally, this tube interacts with others to make sheets alternating hydrophobic organic part and hydrophilic hydroxy groups of the molecules 1 and the oxygen of acetones arranged regularly. The silanetriol 1 is very stable compound in solution and in solid states at room temperature, but decomposed in the presence of KOH, and undergoes a condensation reaction with dicyclohexylcarbodiimide (DCC) as strong dehydrating agent to give polysiloxane. The silanetriol 1 reacts with trimethylchlorosilane to give three type siloxane products (Ph 3C)Si(OH)3-n(OSiMe3)n (n = 1, 2, 3). The number (n) of silylation of hydroxy groups on the silanetriol 1 increase with increasing the mol ratio of trimethylchlorosilane used.
URI
https://scholarworks.unist.ac.kr/handle/201301/6061
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=14144255097
DOI
10.1016/j.jorganchem.2004.12.012
ISSN
0022-328X
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CHM_Journal Papers
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