| “Self-assembly” leads to formation of helical phases |
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|
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| Si-Si-Si-Si |
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| dihedral
angle |
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| is ~170° |
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| Repeat unit: -
(SiR2 ) – and R= (CH2)3CH3 |
|
|
| Conformational
energy surface of an all transoid |
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| (15/7 helix)
in poly(di-n-butylsilane) oligomer |
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|
|
|
|
| C-Si-C-C |
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| dihedral |
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| (deg.) |
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|
|
|
|
|
| C-C-Si-C |
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| dihedral |
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| (deg.) |
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| 15/7 helix |
