二维配位聚合物[Tb(1,4-bdc)_(1.5)(phen)(H_2O)]_n的结构与光致发光性能研究
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摘要
采用水热合成方法,在180℃条件下,高氯酸铽、1,10-菲罗啉和对苯二甲酸反应,合成了稀土铽(III)的二维配合物[Tb(1,4-bdc)1. 5(phen)(H2O)]n(1)(phen=1,10-菲罗啉; 1,4-H2bdc=对苯二甲酸)。单晶衍射分析结果表明,该配合物属三斜晶系,■空间群,晶胞参数为a=1. 03430(10) nm,b=1. 0854(2) nm,c=1. 1399(2) nm,α=107. 284(16)°,β=91. 58(2)°,γ=113. 104(15)°。Tb(III)离子为八配位,六个配位氧原子中五个来自1,4-bdc,另一个来自配位水分子。两个配位氮原子来自1,10-菲罗啉分子。1,4-bdc在配合物中有三配位和四配位两种配位方式。该配合物在波长为325 nm紫外光的激发下发射Tb(III)的绿色特征荧光,其光致发光的绝对量子产率为36%(λex=325 nm),其5D4激发态的荧光寿命为0. 638 ms。
2D terbium coordination polymer [Tb( 1,4-bdc)1. 5( phen)( H2O) ]n( 1)( 1,4-H2 bdc = terephthalic acid; phen =1,10-phenanthroline) was synthesized by hydrothermal method at 180 ℃ with the reaction of 1,4-H2 bdc,terbium chlorate and1,10-phenanthroline under hydrothermal condition. Single crystal analysis shows complex 1 crystallizes in triclinic system,■ space group with a = 1. 03430( 10) nm,b = 1. 0854( 2) nm,c = 1. 1399( 2) nm,α = 107. 284( 16) °,β = 91. 58( 2) °,γ =113. 104( 15) °. Each Tb( III) ion coordinated with six oxygen atoms and two nitrogen atoms. Five coordinated oxygen atoms on each Tb( III) ion were from five 1,4-bdc anions and the other one from coordination water molecule. Each phen ligand coordinatied one Tb( III) ion by chelating way and supplied two coordination nitrogen atoms. The 1,4-bdc anions show threeand four-coordinated two coordination ways. The compound exhibits strong fluorescence under excitation of 325 nm ultraviolet light. The absolute quantum yield of photoluminescence is 36%( λex= 325 nm) and the fluorescence lifetime of5 D4 excited state is 0. 638 ms.
2D terbium coordination polymer [Tb( 1,4-bdc)1. 5( phen)( H2O) ]n( 1)( 1,4-H2 bdc = terephthalic acid; phen =1,10-phenanthroline) was synthesized by hydrothermal method at 180 ℃ with the reaction of 1,4-H2 bdc,terbium chlorate and1,10-phenanthroline under hydrothermal condition. Single crystal analysis shows complex 1 crystallizes in triclinic system,■ space group with a = 1. 03430( 10) nm,b = 1. 0854( 2) nm,c = 1. 1399( 2) nm,α = 107. 284( 16) °,β = 91. 58( 2) °,γ =113. 104( 15) °. Each Tb( III) ion coordinated with six oxygen atoms and two nitrogen atoms. Five coordinated oxygen atoms on each Tb( III) ion were from five 1,4-bdc anions and the other one from coordination water molecule. Each phen ligand coordinatied one Tb( III) ion by chelating way and supplied two coordination nitrogen atoms. The 1,4-bdc anions show threeand four-coordinated two coordination ways. The compound exhibits strong fluorescence under excitation of 325 nm ultraviolet light. The absolute quantum yield of photoluminescence is 36%( λex= 325 nm) and the fluorescence lifetime of5 D4 excited state is 0. 638 ms.
引文
[1] Mao P,Yan L,Wu W,et al. Lanthanide(La,Tb,Dy)complexes with quinolinyloxy acetamide ligand:Crystal structures and fluorescence properties[J]. Chin. J. Inorg. Chem.,2016,32(6):1095-1100.
[2]刘继元,李云涛,邓建国. 2,2'-联吡啶-5,5'-二羧酸与稀土配合物的合成、结构及发光性能[J].人工晶体学报,2018,47(5):983-989.
[3] Wang H,Li G,Chen Y,et al. Structures and luminescent properties of Sm(III)and Dy(III)coordination polymers with 2,4,6-pyridinetricarboxylic acid[J]. J. Coord. Chem.,2010,63(23):4068-4076.
[4] Cui Y,Xu H,Yue Y,et al. A luminescent mixed-lanthanide metal-organic framework thermometer[J]. J. Am. Chem. Soc.,2012,134:3979-3982.
[5]王宏胜,李公春,张万强,等.两种吡啶多羧酸与稀土Eu(III)配合物的结构与光致发光性质[J].人工晶体学报,2017,46(1):168-173.
[6] Haldoupis E,Nair S,Sholl D S. Finding MOFs for highly selective CO2/N2adsorption using materials screening based on efficient assignment of atomic point charges[J]. J. Am. Chem. Soc.,2012,134:4313-4323.
[7] Park J,Yuan D,Pham K T,et al. Reversible alteration of CO2adsorption upon photochemical or thermal treatment in a metal-organic framework[J]. J. Am. Chem. Soc.,2012,134:99-102.
[8] Harding J L,Reynolds M M. Metal organic frameworks as nitric oxide catalysts[J]. J. Am. Chem. Soc.,2012,134:3330-3333.
[9] Roberts J M,Fini B M,Sarjeant A A,et al. Urea metal-organic frameworks as effective and size-selective hydrogen-bond catalysts[J]. J. Am.Chem. Soc.,2012,134:3334-3337.
[10] Liu J,Chen J,Zhao G. Synthesis,crystal structure and fluorescence spectrum of rare earth(Ⅲ)complexes with p-hydroxyphenylacetic acid and1,10-phenanthroline[J]. Chin. J. Inorg. Chem.,2011,27(1):100-106.
[11] Liu S,Huang L,Yu L,et al. Synthesis,crystal structure and luminescence properties of terbium complex with 4-(trifluoromethyl)benzoic acid and 2,2'-bipyridine[J]. Chin. J. Inorg. Chem.,2009,25(6):1102-1105.
[12] Zhang Y,Hao Y,Pei J,et al. Synthesis and fluorescence properties of europium complexes with 4-(4-pyridyl formoyl)benzoic acid[J].Spectroscopy and Spectral Analysis,2011,31(1):145-148.
[13] Zhou H,Wang H,Zhang T,et al. Synthesis and spectra analysis of terbium(III)complexes[J]. Journal of Functional Materials,2011,42(6):1054-1056.
[14] Liu J,Wang M,Zhang Z,et al. Hydrothermal synthesis,crystal structure and properties of a Eu(III)coordination polymer assembled by(-)-2,2'-[thiophene-2,5-diylbis(carbonylimino)] ipropanoic acid and 4,4'-dipyridine[J]. Chin. J. Inorg. Chem.,2012,28(1):50-54.
[15] Sheldrick G M. SHELXS 97,Program for the solution of crystal structures; University of Gttingen:Germany,1997.
[16] Sheldrick G M. SHELXL 97,Program for the refinement of crystal structures; University of Gttingen:Germany,1997.
[2]刘继元,李云涛,邓建国. 2,2'-联吡啶-5,5'-二羧酸与稀土配合物的合成、结构及发光性能[J].人工晶体学报,2018,47(5):983-989.
[3] Wang H,Li G,Chen Y,et al. Structures and luminescent properties of Sm(III)and Dy(III)coordination polymers with 2,4,6-pyridinetricarboxylic acid[J]. J. Coord. Chem.,2010,63(23):4068-4076.
[4] Cui Y,Xu H,Yue Y,et al. A luminescent mixed-lanthanide metal-organic framework thermometer[J]. J. Am. Chem. Soc.,2012,134:3979-3982.
[5]王宏胜,李公春,张万强,等.两种吡啶多羧酸与稀土Eu(III)配合物的结构与光致发光性质[J].人工晶体学报,2017,46(1):168-173.
[6] Haldoupis E,Nair S,Sholl D S. Finding MOFs for highly selective CO2/N2adsorption using materials screening based on efficient assignment of atomic point charges[J]. J. Am. Chem. Soc.,2012,134:4313-4323.
[7] Park J,Yuan D,Pham K T,et al. Reversible alteration of CO2adsorption upon photochemical or thermal treatment in a metal-organic framework[J]. J. Am. Chem. Soc.,2012,134:99-102.
[8] Harding J L,Reynolds M M. Metal organic frameworks as nitric oxide catalysts[J]. J. Am. Chem. Soc.,2012,134:3330-3333.
[9] Roberts J M,Fini B M,Sarjeant A A,et al. Urea metal-organic frameworks as effective and size-selective hydrogen-bond catalysts[J]. J. Am.Chem. Soc.,2012,134:3334-3337.
[10] Liu J,Chen J,Zhao G. Synthesis,crystal structure and fluorescence spectrum of rare earth(Ⅲ)complexes with p-hydroxyphenylacetic acid and1,10-phenanthroline[J]. Chin. J. Inorg. Chem.,2011,27(1):100-106.
[11] Liu S,Huang L,Yu L,et al. Synthesis,crystal structure and luminescence properties of terbium complex with 4-(trifluoromethyl)benzoic acid and 2,2'-bipyridine[J]. Chin. J. Inorg. Chem.,2009,25(6):1102-1105.
[12] Zhang Y,Hao Y,Pei J,et al. Synthesis and fluorescence properties of europium complexes with 4-(4-pyridyl formoyl)benzoic acid[J].Spectroscopy and Spectral Analysis,2011,31(1):145-148.
[13] Zhou H,Wang H,Zhang T,et al. Synthesis and spectra analysis of terbium(III)complexes[J]. Journal of Functional Materials,2011,42(6):1054-1056.
[14] Liu J,Wang M,Zhang Z,et al. Hydrothermal synthesis,crystal structure and properties of a Eu(III)coordination polymer assembled by(-)-2,2'-[thiophene-2,5-diylbis(carbonylimino)] ipropanoic acid and 4,4'-dipyridine[J]. Chin. J. Inorg. Chem.,2012,28(1):50-54.
[15] Sheldrick G M. SHELXS 97,Program for the solution of crystal structures; University of Gttingen:Germany,1997.
[16] Sheldrick G M. SHELXL 97,Program for the refinement of crystal structures; University of Gttingen:Germany,1997.