Organosilicas based on purine-pyrimidine base pair assemblies: a solid state NMR point of view

被引：29

作者：

Arrachart, Guilhem ^{[1
]}

Carcel, Carole ^{[1
]}

Moreau, Joel J. E. ^{[1
]}

Hartmeyer, Geoffrey ^{[2
]}

Alonso, Bruno ^{[1
]}

Massiot, Dominique ^{[3
]}

Creff, Gaelle ^{[4
]}

Bantignies, Jean-Louis ^{[4
]}

Dieudonne, Philippe

Man, Michel Wong Chi ^{[1
]}

Althoff, Gerhard ^{[5
]}

Babonneau, Florence ^{[2
]}

Bonhomme, Christian ^{[2
]}

机构：

[1] UMII CNRS ENSCM UMI, ICG Montpellier, MACS, UMR 5253, F-34296 Montpellier, France

[2] CNRS, Lab Chim Matiere Condense Paris, UMR 7574, F-75252 Paris 6, France

[3] CRMHT, Orleans, France

[4] Lab Colloides Verres & Nanomateriaux, F-34095 Montpellier, France

[5] Bruker BioSpin GmbH, NMR Div, Karlsruhe, Germany

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2008年 / 18卷 / 04期

关键词：

D O I：

10.1039/b714785f

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：

Organosilicas based on adenine (A) and thymine (T) assemblies have been synthesized. A surfactant-free route, based on specific molecular recognition between A and T entities, has been developed. The characterization of the H-bond networks, in both homo- and hetero-assemblies, has been emphasized by using H-1 solid state NMR ( nuclear magnetic resonance). The latest experimental developments were implemented (i.e. very fast MAS ( magic angle spinning) experiments at 750 MHz and 33 kHz), in order to enhance drastically the spectral resolution. Moreover, H-1 experiments at 67 kHz in 1.3 mm rotors were performed. Spatial connectivities between protons were established by using H-1-H-1 DQ (double quantum) MAS experiments, allowing the precise characterization of A/A, T/T and A/T associations.

引用

页码：392 / 399

页数：8

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