Tris(rhenium fac -tricarbonyl) Polypyridine Functionalized Cyclotriguaiacylene Ligands with Rich and Varied Emission
Tris(rhenium fac -tricarbonyl) Polypyridine Functionalized Cyclotriguaiacylene Ligands with Rich and Varied Emission
复制标题
发射丰富多样的三(铼基-三羰基)聚吡啶功能化环三愈创木基配体
DOI：
10.1021/acs.organomet.6b00099
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发表时间：
2016
期刊：
影响因子：
2.8
通讯作者：
Thorp-Greenwood F
中科院分区：
文献类型：
--
作者：
Thorp-Greenwood F
合成了三（4-[4-甲基-2，2 ′-联吡啶]甲基）环三愈创木烯（L1）、三（4-[4-甲基-2，2 ′-联吡啶基]）环三愈创木烯（L2）和三（4-[2，2 ′，6 ′，2 ″-三联吡啶基]苄基）环三愈创木烯（L3）的三核溴化三羰基配合物。通过X射线单晶衍射确定了配合物L1和配合物[{Re（CO）3Br}3（L1）]（1）和[{Re（CO）3Br}3（L3）]（3）的晶体结构，配合物3为聚集体。稳态发光性能和时间分辨荧光研究的配合物已进行，并揭示了一个不寻常的双发射现象的络合物2。配合物1和2的发射波长比典型的单茂Re（CO）3-bipy-Br配合物的发射波长红移，而配合物3的发射波长随激发态的变化不寻常。
Trinuclear rheniumfac-tricarbonyl bromide complexes have been synthesized coordinated to the host ligands tris(4-[4-methyl-2,2′-bipyridyl]methyl)cyclotriguaiacylene (L1), tris(4-[4-methyl-2,2′-bipyridoyl])cyclotriguaiacylene (L2), and tris(4-[2,2′,6′,2″-terpyridyl]benzyl)cyclotriguaiacylene (L3). The structure of L1 and complexes [{Re(CO)3Br}3(L1)] (1) and [{Re(CO)3Br}3(L3)] (3) have been elucidated through X-ray single-crystal diffraction, with complex3crystallizing as a conglomerate. The steady-state luminescent properties and time-resolved fluorescence studies of the complexes have been conducted and revealed an unusual dual-emission phenomenon for complex2. Complexes1and2show red-shifted emission wavelengths in comparison with those typical of monometallic Re(CO)3-bipy-Br complexes, while complex3showed an unusual excitation-dependent variation of emission wavelength.