苯并咪唑基Ir(Ⅲ)配合物的合成、结构和发光行为的调控或转换（英文）
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摘要
合成了2个新的铱配合物[Ir(ppy)(qbiH)]NO_3(1·NO_3)和[Ir(ppy)(qbi)](2)。晶体结构分析表明,配合物1·NO_3和2中的[Ir(ppy)2]+单元分别与苯并咪唑基的中性配体qbiH与阴离子配体qbi-螯合。在溶液以及在固态条件下,2个配合物表现出明显不同的发光行为。1·NO_3和2在CH_2Cl_2溶液中的磷光发射波长分别为581和574 nm。在固态,1·NO_3和2分别发红色(616 nm)与桔色(598 nm)的磷光。有趣的是,1·NO_3和2在Et3N或TFA蒸汽的作用下,表现出红光发射与桔光发射之间的转换,这是因为它们的配体qbiH和qbi-发生了酸碱诱导的结构转换。此外,还讨论了配合物1·NO_3和2的结构与发光行为之间的关系。
Two iridium complexes [Ir(ppy)(qbiH)]NO_3(1·NO_3) and [Ir(ppy)(qbi)](2) have been synthesized. Their crystal structures indicate that an [Ir(ppy)2]+unit is chelated by a neutral benzoimidazole-based ligand qbi H in 1·NO_3, while anion ligand qbi-in 2. The different deprotonation degrees of ligands qbi H and qbi-in the two complexes lead to their clear differences in luminescence both in solution and in solid state. Complexes 1·NO_3 and 2 in CH_2Cl_2 show the emissions at 581 and 574 nm, respectively. In solid state, a red emission at 611 nm was observed for 1·NO_3, while an orange emission at 598 nm for 2. It is interesting that both 1·NO_3 and 2 in solid state exhibited luminescence switching between red emission and orange emission, upon meeting Et3 N/TFA vapor. This is due to the acid/base-induced structural interconversion between ligand qbi H and ligand qbi-in complexes 1·NO_3 and 2. Moreover, we discuss the relationship between structure and luminescence for 1·NO_3 and 2. CCDC: 1907283, 1·NO_3; 1907284, 2.
Two iridium complexes [Ir(ppy)(qbiH)]NO_3(1·NO_3) and [Ir(ppy)(qbi)](2) have been synthesized. Their crystal structures indicate that an [Ir(ppy)2]+unit is chelated by a neutral benzoimidazole-based ligand qbi H in 1·NO_3, while anion ligand qbi-in 2. The different deprotonation degrees of ligands qbi H and qbi-in the two complexes lead to their clear differences in luminescence both in solution and in solid state. Complexes 1·NO_3 and 2 in CH_2Cl_2 show the emissions at 581 and 574 nm, respectively. In solid state, a red emission at 611 nm was observed for 1·NO_3, while an orange emission at 598 nm for 2. It is interesting that both 1·NO_3 and 2 in solid state exhibited luminescence switching between red emission and orange emission, upon meeting Et3 N/TFA vapor. This is due to the acid/base-induced structural interconversion between ligand qbi H and ligand qbi-in complexes 1·NO_3 and 2. Moreover, we discuss the relationship between structure and luminescence for 1·NO_3 and 2. CCDC: 1907283, 1·NO_3; 1907284, 2.
引文
[1] Murphy L, Congreve A, Palsson L O, et al. Chem. Commun.,2010,46:8743-8745
[2](a)TONG Bi-Hai(童碧海), MEI Qun-Bo(梅群波), LI Zhi-Wen(李志文), et al. Acta Chim. Sinica(化学学报), 2012,70:2451-2456(b)ZHOU Rui(周瑞), SONG Xin-Chao(宋新潮), TIAN Jie(田杰), et al. Chinese Journal of Luminescence(发光学报),2010,31:279-284
[3] Henwood A F, Hu Y, Sajjad M T, et al. Chem. Eur. J., 2015,21:19128-19135
[4] Hallett A J, Ward B D, Kariuki B M, et al. J. Organomet.Chem., 2010,695:2401-2409
[5](a)Cao D K, Hu J S, Li M Q, et al. Dalton Trans., 2015,44:21008-21015(b)Gong D P, Gao T B, Cao D K, et al. Dalton Trans., 2017,46:275-286
[6] Rommel S A, Sorsche D, Rockstroh N, et al. Eur. J. Inorg.Chem., 2015:3730-3739
[7] He L, Ma D, Duan L, et al. Inorg. Chem., 2012,51:4502-4510
[8] Kappaun S, Eder S, Sax S, et al. Eur. J. Inorg. Chem., 2007:4207-4215
[9](a)Crosby G A, Demas J N. J. Phys. Chem., 1971,75:991-1024(b)Brouwer A M. Pure Appl. Chem., 2011,83:2213-2228
[10]SAINT, Program for Data Extraction and Reduction, Siemens Analytical X-ray Instruments, Madison, WI, 1994-1996.
[11]SHELXTL, Reference Manual, Ver.5.0, Siemens Industrial Automation, Analytical Instruments, Madison, WI, 1997.
[12]Sheldrick G M. Acta Crystallogr. Sect. A:Found. Crystallogr.,2008,A64:112-122
[13]McGee K A, Mann K R. Inorg. Chem., 2007,46:7800-7809
[14]Marchi E, Sinisi R, Bergamini G, et al. Chem. Eur. J., 2012,18:8765-8773
[15]Mydlak M, Bizzarri C, Hartmann D, et al. Adv. Funct. Mater.,2010,20:1812-1820
[16]You Y, Lee S, Kim T, et al. J. Am. Chem. Soc., 2011,133:18328-18342
[17]Tsuboyama A, Iwawaki H, Furugori M, et al. J. Am. Chem.Soc., 2003,125:12971-12979
[18]Kessler F, Costa R D, Censo D D, et al. Dalton Trans.,2012,41:180-191
[19]Yin S Y, Sun S S, Pan M, et al. Inorg. Chem. Commun.,2017,83:81-83
[2](a)TONG Bi-Hai(童碧海), MEI Qun-Bo(梅群波), LI Zhi-Wen(李志文), et al. Acta Chim. Sinica(化学学报), 2012,70:2451-2456(b)ZHOU Rui(周瑞), SONG Xin-Chao(宋新潮), TIAN Jie(田杰), et al. Chinese Journal of Luminescence(发光学报),2010,31:279-284
[3] Henwood A F, Hu Y, Sajjad M T, et al. Chem. Eur. J., 2015,21:19128-19135
[4] Hallett A J, Ward B D, Kariuki B M, et al. J. Organomet.Chem., 2010,695:2401-2409
[5](a)Cao D K, Hu J S, Li M Q, et al. Dalton Trans., 2015,44:21008-21015(b)Gong D P, Gao T B, Cao D K, et al. Dalton Trans., 2017,46:275-286
[6] Rommel S A, Sorsche D, Rockstroh N, et al. Eur. J. Inorg.Chem., 2015:3730-3739
[7] He L, Ma D, Duan L, et al. Inorg. Chem., 2012,51:4502-4510
[8] Kappaun S, Eder S, Sax S, et al. Eur. J. Inorg. Chem., 2007:4207-4215
[9](a)Crosby G A, Demas J N. J. Phys. Chem., 1971,75:991-1024(b)Brouwer A M. Pure Appl. Chem., 2011,83:2213-2228
[10]SAINT, Program for Data Extraction and Reduction, Siemens Analytical X-ray Instruments, Madison, WI, 1994-1996.
[11]SHELXTL, Reference Manual, Ver.5.0, Siemens Industrial Automation, Analytical Instruments, Madison, WI, 1997.
[12]Sheldrick G M. Acta Crystallogr. Sect. A:Found. Crystallogr.,2008,A64:112-122
[13]McGee K A, Mann K R. Inorg. Chem., 2007,46:7800-7809
[14]Marchi E, Sinisi R, Bergamini G, et al. Chem. Eur. J., 2012,18:8765-8773
[15]Mydlak M, Bizzarri C, Hartmann D, et al. Adv. Funct. Mater.,2010,20:1812-1820
[16]You Y, Lee S, Kim T, et al. J. Am. Chem. Soc., 2011,133:18328-18342
[17]Tsuboyama A, Iwawaki H, Furugori M, et al. J. Am. Chem.Soc., 2003,125:12971-12979
[18]Kessler F, Costa R D, Censo D D, et al. Dalton Trans.,2012,41:180-191
[19]Yin S Y, Sun S S, Pan M, et al. Inorg. Chem. Commun.,2017,83:81-83
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