发现磺酸功能化离子液体型多金属氧酸盐(IL-POM)具有可逆光色性质,并在紫外光激发下,详细考察了[PyPS]nH3-nPW12(n=1,3)(PyPs:吡啶丙磺酸盐)、[PyPS]4SiW12、[TEAPS] 3PW12(TEAPS:3-(三乙胺基)丙磺酸盐)等样品的光致变色行为.结果表明,磺酸化的IL-POM是一类弱的电荷转移多金属氧酸盐,但在紫外光激发下有机阳离子和POM阴离子间可以发生电子相互作用,实现W6+→W5+的还原,并形成稳定的电荷转移复合物,导致样品显色.钨磷酸盐的光色性大大强于钨硅酸盐,且空气中避光放置可以消色.但样品容易疲劳,着色-褪色重复性不好.对光色机理的研究显示,有机阳离子中的-SO3H基团作为电子供体参与了变色过程.揭示了磺酸基团的电子供体作用,为设计电荷转移多金属氧酸盐和POM基光色材料提供了新的思路.
参考文献
| [1] | Jun Peng;Enbo Wang;Minghong Xin;Jie Liu;Yushan Zhou;Wenzhuo Li.Synthesis, electrical properties and X-ray crystal structure of a new BEDT-TTF-based radical cation salt with #alpha#-Keggin heteropolymolybdate[J].Polyhedron: The International Journal for Inorganic and Organometallic Chemistry,199924(24):3147-3152. |
| [2] | Coue V;Dessapt R;Bujoli-Doeuff M;Evain M;Jobic S.Synthesis, characterization, and photochromic properties of hybrid organic-inorganic materials based on molybdate, DABCO, and piperazine[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,20077(7):2824-2835. |
| [3] | Niu JY.;Duan CY.;Fun HK.;Zhou ZY.;You XZ..A NOVEL OPTICAL COMPLEX BETWEEN AN ORGANIC SUBSTRATE AND A POLYOXOMETALATE - CRYSTAL AND MOLECULAR STRUCTURE OF ALPHA-H4SIW12O40-CENTER-DOT-4HMPA-CENTER-DOT-2H(2)O (HMPA EQUALS HEXAMETHYLPHOSPHORAMIDE)[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,199614(14):4211-4217. |
| [4] | Bi LH.;Xu L.;Huang RD.;Wang EB..Synthesis, properties and crystal structure of some polyoxometallates containing the tris(hydroxymethyl)aminomethane cation[J].Inorganica Chimica Acta,20002(2):163-171. |
| [5] | Gamelas JAF.;Cavaleiro AMV.;Gomes ED.;Belsley M.;Herdtweck E..Synthesis, properties and photochromism of novel charge transfer compounds with Keggin anions and protonated 2,2 '-biquinoline[J].Polyhedron: The International Journal for Inorganic and Organometallic Chemistry,200225/26(25/26):2537-2545. |
| [6] | Zhang LJ.;Yu Z.;Fang GS.;You XZ.;Zhou YS..Synthesis and structural characterization of two new polyoxometalate-based organic/inorganic charge-transfer hybrids 4(2,2 '-DPA)center dot pseudo-alpha-H4SiMO12O40 center dot 4DMF center dot 2H(2)O and 4(2,2 '-DPA)center dot pseudo-alpha-H4SiMo12O40[J].Journal of Molecular Structure,20011/3(1/3):83-90. |
| [7] | Le Magueres P.;Lindeman SV.;Veya P.;Kochi JK.;Hubig SM..Novel charge-transfer materials via cocrystallization of planar aromatic donors and spherical polyoxometalate acceptors[J].Journal of the American Chemical Society,200041(41):10073-10082. |
| [8] | Ai LM;Feng W;Chen J;Liu Y;Cai WM.Evaluation of microstructure and photochromic behavior of polyvinyl alcohol nanocomposite films containing polyoxometalates[J].Materials Chemistry and Physics,20081(1):131-136. |
| [9] | Huang Y;Pan QY;Dong XW;Cheng ZX.Synthesis and photochromism of a novel organic-inorganic hybrid film embedded with polyoxomatalates[J].Materials Chemistry and Physics,20062/3(2/3):431-436. |
| [10] | Xiujuan Luo;Chun Yang.Photochromic ordered mesoporous hybrid materials based on covalently grafted polyoxometalates[J].Physical chemistry chemical physics: PCCP,201117(17):7892-7902. |
| [11] | Wangli Huang;Wenshuai Zhu;Huaming Li.Heteropolyanion-Based Ionic Liquid for Deep Desulfurization of Fuels in Ionic Liquids[J].Industrial & Engineering Chemistry Research,201019(19):8998-9003. |
| [12] | Sa-Sa Wang;Wei Liu;Qing-Xia Wan.Homogeneous epoxidation of lipophilic alkenes by aqueous hydrogen peroxide: catalysis of a Keggin-type phosphotungstate-functionalized ionic liquid in amphipathic ionic liquid solution[J].Green chemistry,200910(10):1589-1594. |
| [13] | Weihong Zhang;Yan Leng;Pingping Zhao.Heteropolyacid salts of N-methyl-2-pyrrolidonium as highly efficient and reusable catalysts for Prins reactions of styrenes with formalin[J].Green chemistry,20114(4):832-834. |
| [14] | Chiang MH;Dzielawa JA;Dietz ML;Antonio MR.Redox chemistry of the Keggin heteropolyoxotungstate anion in ionic liquids[J].Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry,20041(1):77-84. |
| [15] | In K.Song;Mark A.Barteau.Redox properties of Keggin-type heteropolyacid(HPA)catalysts: effect of counter-cation,heteroatom,and polyatom substitution[J].Journal of molecular catalysis, A. Chemical,20041/2(1/2):229-236. |
| [16] | 张铁锐;冯威;卢然;包春燕;赵英英;李铁津;姚建年.双长链烷基Dawson结构钼磷酸复合薄膜的制备、结构及光致变色性质[J].高等学校化学学报,2002(2):297-299. |
| [17] | Toshihiro Yamase.Photo- and Electrochromism of Polyoxometalates and Related Materials[J].Chemical Reviews,19981(1):307-325. |
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