Role of surface phenomena in the reaction of molecular solids: the Diels–Alder reaction on pentacene
Role of surface phenomena in the reaction of molecular solids: the Diels–Alder reaction on pentacene
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表面现象在分子固体反应中的作用:并五苯的狄尔斯-阿尔德反应
DOI:
10.1039/d0ce00269k
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发表时间:
2020
期刊:
影响因子:
3.1
通讯作者:
Ciszek, Jacob W.
中科院分区:
文献类型:
--
作者:
Piranej, Selma;Shelhart Sayers, Michael A.;Deye, Gregory J.;Maximoff, Sergey N.;Hopwood, Jonathan P.;Park, Haejun;Slavsky, Jean G.;Ciszek, Jacob W.
Reactivity trends for molecular solids cannot be explained exclusively through the topochemical phenomenon (i.e. diffusivity, reaction cavities) or electronic structure of the molecules. As an example of this class, Diels–Alder reactions of small molecules with pentacene thin films are examined to elucidate the importance of surface phenomena to reactivity. Polarization modulation-infrared reflection–absorption spectroscopy (PM-IRRAS) has revealed that vapors from the small molecules condense on the surface, in a non-covalent manner, to form a coating 2–3 molecules thick. The phase of this layer can provide increased surface diffusion (both reactant and product) which rapidly accelerates the reaction rate. Kinetic studies of pentacene thin film reactions demonstrate the importance of this condensed state to trends in reactivity, with layers in a quasi-liquid state showing a rate acceleration of 13–30 times compared to those in a quasi-solid state. Scanning electron microscopy provides further evidence of this phase behavior, while solid-state UV-vis confirms the kinetic results.
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影响因子:
5.2
作者:
Yang;García‐Garibay
通讯作者:
García‐Garibay
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Brittni A. Qualizza;J. Ciszek
通讯作者:
J. Ciszek
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
来原なな子;川崎常臣;五十嵐崇;そ合憲三;そ合憲三;K. Soai;K. Soai
通讯作者:
K. Soai
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
Y. Teraoka;T. Seto
通讯作者:
T. Seto
影响因子:
3.9
作者:
Li, Feifei;Ciszek, Jacob W.
通讯作者:
Ciszek, Jacob W.