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Regulating structural dimensionality and emission colors by organic conjugation between SmIII at a fixed distance†
Dalton Transactions ( IF 4 ) Pub Date : 2018-03-20 00:00:00 , DOI: 10.1039/c8dt00238j
Hai-Bing Xu 1, 2, 3, 4, 5 , Jie Wang 1, 2, 3, 4, 5 , Xue-Li Chen 1, 2, 3, 4, 5 , Peng Xu 1, 2, 3, 4, 5 , Kang-Tai Xiong 1, 2, 3, 4, 5 , Dao-Bin Guan 1, 2, 3, 4, 5 , Jian-Guo Deng 6, 7, 8, 9, 10 , Zhi-Hua Deng 6, 7, 8, 9, 10 , Mohamedally Kurmoo 11, 12, 13, 14, 15 , Ming-Hua Zeng 1, 2, 3, 4, 5
Affiliation  

The conjugation of bridging bis(diphenylphosphine oxide) alkane or arene ligands was found to control the structural dimensionality and the emission color of complexes from reactions with SmIII(hfac)3(H2O)2 (hfac = hexafluoroacetylacetonato) while retaining the Sm⋯Sm distances. Bis(diphenylphosphine oxide)-1,4-butane (L1) affords a one-dimensional (1D) ribbon {Sm(hfac)3(L1)} (1) that emits red color, while bis(diphenyl-phosphinoyl)-1,4-benzene (L2) results in a two-dimensional (2D) network {Sm(hfac)2(CF3COO)(L2)3} (2) and near-white emission, but bis(diphenyl-phosphinoyl)-9,10-anthracene (L3) forms a zero-dimensional (0D) cyclic structure {Sm(hfac)3(L3)}2 (3) with strong π⋯π interactions that emit green color. Noticeably, the conjugation change is accompanied by a configurational change of coordination from trans for 1 and 2 to cis for 3. The color change is associated with the superposition of ligand and Sm based electronic band energies and their intensities. Such white light emission by a single compound having contributions from different building components is quite rare.

中文翻译:

通过固定距离Sm III之间的有机共轭来调节结构尺寸和发射颜色

桥接双(二苯基氧化膦)烷烃或芳烃配体的缀合,发现以控制所述结构的维数,并从反应与钐络合物的发光颜色III(HFAC)3(H 2 O)2(HFAC - =六氟乙酰丙酮),同时保持Sm⋯Sm距离。双(二苯基氧化膦)-1,4-丁烷(L1)提供一维(1D)色带{Sm(hfac)3L1)} 1),发出红色,而双(二苯基膦酰基)- 1,4-苯(L2)形成二维(2D)网络{Sm(hfac)2(CF 3COO)(L23 } 2)和近白色发射,但双(二苯基膦酰基)-9,10-蒽(L3)形成零维(0D)环状结构{Sm(hfac)3L3)} 23)具有强π⋯π相互作用,发出绿色。值得注意的是,共轭变化是伴随着构协调从变化反式12,以顺式进行3。颜色变化与配体和基于Sm的电子带能及其强度的叠加有关。由具有不同建筑成分的贡献的单一化合物发出的这种白光非常罕见。
更新日期:2018-03-20
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