Mapping of N-C Bond Formation from a Series of Crystalline Peri-Substituted Naphthalenes by Charge Density and Solid-State NMR Methodologies.

Mapping of N-C Bond Formation from a Series of Crystalline Peri-Substituted Naphthalenes by Charge Density and Solid-State NMR Methodologies.
复制标题

DOI:
10.1002/anie.202111100
复制
发表时间:
2021-10-25
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
通讯作者:
Wallis JD
Wallis JD
中科院分区:
其他
文献类型:
--
作者:
Rees GJ;Pitak MB;Lari A;Day SP;Yates JR;Gierth P;Barnsley K;Smith ME;Coles SJ;Hanna JV;Wallis JD

文献摘要

参考文献

相似文献

结合电荷密度研究和固态核磁共振(NMR) 1 J NC耦合测量,由周期密度泛函理论(DFT)计算支持,用于表征一系列晶体周围取代萘中亲核氮原子和亲电sp 2碳原子之间从n -π *相互作用到键形成的转变。随着N·⋅⋅C距离的减小,在N·⋅⋅C = 1.8 Å处,两基团之间电荷密度的增加导致了拉普拉斯量的急剧下降,周期DFT计算预测,异核自旋回波NMR测量证实,长C - N键(1.60-1.65 Å)的1 J NC耦合≈3-6 Hz, N·⋅⋅C >2.1 Å的1 J NC耦合<1 Hz。结合电荷密度测量、固态核磁共振1 J NC耦合和DFT计算,描述了一系列模型晶体环取代萘从n -π *相互作用到键形成的转变。
A combination of charge density studies and solid state nuclear magnetic resonance (NMR) 1 J NC coupling measurements supported by periodic density functional theory (DFT) calculations is used to characterise the transition from an n–π* interaction to bond formation between a nucleophilic nitrogen atom and an electrophilic sp 2 carbon atom in a series of crystalline peri‐substituted naphthalenes. As the N⋅⋅⋅C distance reduces there is a sharp decrease in the Laplacian derived from increasing charge density between the two groups at ca. N⋅⋅⋅C = 1.8 Å, with the periodic DFT calculations predicting, and heteronuclear spin‐echo NMR measurements confirming, the 1 J NC couplings of ≈3–6 Hz for long C−N bonds (1.60–1.65 Å), and 1 J NC couplings of <1 Hz for N⋅⋅⋅C >2.1 Å. A combination of charge density measurements, solid‐state NMR 1 J NC couplings, and DFT calculations is presented to characterise the transition from an n–π* interaction to bond formation for a series of model crystalline peri‐substituted naphthalenes.
DOI: 10.1039/b201038k
发表时间: 2002-01-01
期刊: JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2
影响因子: --
作者:
Bell, PC;Skranc, W;Wallis, JD
通讯作者: Wallis, JD
DOI: 10.1107/s0567740872006995
发表时间: 1972-01-01
期刊: ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL CRYSTALLOGRAPHY AND CRYSTAL CHEMISTRY
影响因子: --
作者:
BIRNBAUM, KB
通讯作者: BIRNBAUM, KB
DOI: 10.1002/anie.201603291
发表时间: 2017-03-20
期刊: Angewandte Chemie (International ed. in English)
影响因子: --
作者:
Lin CI;McCarty RM;Liu HW
通讯作者: Liu HW
DOI: 10.1021/ja983320f
发表时间: 1999-03-24
影响因子: 15
作者:
Coppens, P;Abramov, Y;Pressprich, MR
通讯作者: Pressprich, MR
DOI: 10.1021/ja00796a058
发表时间: 1973-01-01
影响因子: 15
作者:
BURGI, HB;DUNITZ, JD;SHEFTER, E
通讯作者: SHEFTER, E