SCOPUS 정보 검색 플랫폼

Volumn 2, Issue 3-4, 2003, Pages 175-178

Hexakis(2,4,6-triisopropylphenylsilsesquioxane)

Author keywords

Cage silsesquioxanes; Chirality; Crystal structure; Gear like motion; Kinetic parameters; Restricted rotation; Variable temperature NMR

Indexed keywords

EID: 13944261312 PISSN: 15690660 EISSN: 15728994 Source Type: Journal
DOI: 10.1023/B:SILC.0000046726.90699.41 Document Type: Conference Paper

Times cited : (16)

References (17)

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2
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3
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11
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- 2/hexane = 7/3) followed by recycle-type pre-parative GPC (JAIgel 2H+2H), and further purified by recrys-tallization from THF and methanol. The target hexasilsesquioxane 1 was obtained in 20% yield (154 mg). From di-siloxanetetraol 2, a similar result was obtained (13% yield). 1: colorless crystals, mp 290-295 ° C. 1 H NMR(CDCl 3,25°C) δ 0.59 (br s, 18H), 0.85 (br s, 18H), 0.98 (br s, 18H), 1.18 (d, 36H), 1.32 (br s, 18H), 2.81 (sep, 6H), 3.64 (br s, 6H) [...]
- 9: C, 70.47, H, 9.04%.

12
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- 3, Z = 4, = 0.097, Rw = 0.096 for 4975 reflections
- 3, Z =4, = 0.097, Rw = 0.096 for 4975 reflections.

13
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14
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- and references cited therein
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16
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- 3 planes (not necessarily by rotation)
- 3 planes (not necessarily by rotation).

17
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- For example
- For example, Tanaka, R., Kyushin, S., Unno, M. & Matsumoto, H. 2002 Enantiomer 7, 157.
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- Tanaka, R.¹ Kyushin, S.² Unno, M.³ Matsumoto, H.⁴

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