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Tuning Cooperativity by Controlling the Linker Length of Silica-Supported Amines in Catalysis and CO2 Capture

Brunelli, Nicholas A., Didas, Stephanie A., Venkatasubbaiah, Krishnan, Jones, Christopher W.·2012·Journal of the American Chemical Society

Abstract

Cooperative interactions between aminoalkylsilanes and silanols on a silica surface can be controlled by varying the length of the alkyl linker attaching the amine to the silica surface from C1 (methyl) to C5 (pentyl). The linker length strongly affects the catalytic cooperativity of amines and silanols in aldol condensations as well as the adsorptive cooperativity for CO(2) capture. The catalytic cooperativity increases with the linker length up to propyl (C3), with longer, more flexible linkers (up to C5) providing no additional benefit or hindrance. Short linkers (C1 and C2) limit the beneficial amine-silanol cooperativity in aldol condensations, resulting in lower catalytic rates than with the C3+ linkers. For the same materials, the adsorptive cooperativity exhibits similar trends for CO(2) capture efficiency.

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Metadata

Authors
Brunelli, N. A., Didas, S. A., Venkatasubbaiah, K., & Jones, C. W.
Venue
Journal of the American Chemical Society
Published
2012-08-20
Volume
134
Issue
34
Pages
13950-13953
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2329287291
Cited by
191
References
0
FWCI
30.87
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Tuning Cooperativity by Controlling the Linker Length of Silica-Supported Amines in Catalysis and CO2 Capture. https://app.cochat.ai/papers/10.1021/ja305601g
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Brunelli, N. A., Didas, S. A., Venkatasubbaiah, K., & Jones, C. W. (2012). Tuning Cooperativity by Controlling the Linker Length of Silica-Supported Amines in Catalysis and CO2 Capture. Journal of the American Chemical Society. https://doi.org/10.1021/ja305601g

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