CONFORMATIONS OF ALPHA-OMEGA DIOLS AND N-ALCOHOLS GRAFTED ON SILICA STUDIED BY SOLID-STATE C-13 NMR

被引：14

作者：

TUEL, A ^{[1
]}

HOMMEL, H ^{[1
]}

LEGRAND, AP ^{[1
]}

BALARD, H ^{[1
]}

SIDQI, M ^{[1
]}

PAPIRER, E ^{[1
]}

机构：

[1] CTR RECH PHYSICOCHIM SURFACES SOLIDS,CNRS,F-68200 MULHOUSE,FRANCE

来源：

COLLOIDS AND SURFACES | 1991年 / 58卷 / 1-2期

关键词：

D O I：

10.1016/0166-6622(91)80195-T

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-resolution C-13 CP/MAS (cross-polarization/magic angle spinning) NMR of alpha-omega diols and n-alcohols terminally grafted on a planar pyrogenic silica, was used to determine the conformations of the molecules at the interface. For alpha-omega diols, the variation of the di-/mono-esterification ratio (R), as a function of the number of carbons in the chain was evaluated; R is highly dependent on the parity (odd or even) of this number. The results are consistent with an organization of the surface where the alpha-omega diols adopt a trans-trans configuration and where the n-alcohols form a compact layer which optimizes the interactions between methylene groups and the solid surface.

引用

页码：17 / 31

页数：15

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