The Planar Blatter Radical: Structural Chemistry of 1,4-Dihydrobenzo[e][1,2,4]triazin-4-yls

被引：59
|
作者：
Kaszynski, Piotr [1 ,2 ,3 ]
Constantinides, Christos P. [4 ]
Young, Victor G., Jr. [5 ]
机构：
[1] Polish Acad Sci, Ctr Mol & Macromol Studies, Sienkiewicza 112, PL-90363 Lodz, Poland
[2] Middle Tennessee Univ, Dept Chem, Murfreesboro, TN 37123 USA
[3] Univ Lodz, Fac Chem, Tamka 12, PL-91403 Lodz, Poland
[4] North Carolina State Univ, Dept Chem, Raleigh, NC 27695 USA
[5] Univ Minnesota, Xray Crystallog Lab, Dept Chem, St Paul, MN 55455 USA
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 37期
基金：
美国国家科学基金会;
关键词：
magnetic properties; radicals; solid-state structure; structure elucidation; supramolecular chemistry; 1,4-DIHYDRO-1,2,4-BENZOTRIAZINYL RADICALS; CRYSTAL-STRUCTURE; 1,3-DIPHENYL-1,4-DIHYDRO-1,2,4-BENZOTRIAZIN-4-YL; TEMPERATURE; DERIVATIVES; CATIONS; CHAINS;
D O I：
10.1002/anie.201605612
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Two planarized analogues of the prototypical Blatter radical (1), peri-annulated 1(S) and 1(O), are demonstrated and provide a new platform for molecular and supramolecular engineering, and for tuning electronic and magnetic properties of the radical. Planarization of 1 results in bathochromic shift to the near-IR region, greater spin delocalization, and anodic shift of the reduction potential only for 1(S). Magnetization studies revealed nearly ideal paramagnetic behavior at high temperatures for both radicals 1(S) and 1(O) with one-dimensional ferromagnetic interaction in the former (2J=14.4cm(-1)) and antiferromagnetic interactions in 1(O) at low temperatures.
引用
收藏
页码：11149 / 11152
页数：4
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