Catalysis Today ( IF 5.3 ) Pub Date : 2018-07-02 , DOI: 10.1016/j.cattod.2018.06.054 Chika Nozaki Kato , Shunsaku Suzuki , Takayuki Mizuno , Yuki Ihara , Akihiro Kurihara , Shunpei Nagatani
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The tetramethylammonium and cesium salts of diplatinum(II) complexes composed of mono-lacunary α-Keggin- and α2-Dawson-type polyoxotungstates, [(CH3)4N]4H[α-AlW11O39{cis-Pt(NH3)2}2]⋅11H2O (TMA-AlW11-Pt-NH3), [(CH3)4N]4H[α-BW11O39{cis-Pt(NH3)2}2]⋅9H2O (TMA-BW11-Pt-NH3), Cs4[α-GeW11O39{Pt(bpy)}2]⋅10H2O (bpy = 2,2′-bipyridine; Cs-GeW11-Pt-bpy), Cs3.5H0.5[α-GeW11O39{Pt(phen)}2]⋅3H2O (phen = 1,10-phenanthroline; Cs-GeW11-Pt-phen), and Cs6[α2-P2W17O61{cis-Pt(NH3)2}2]⋅13H2O (Cs-P2W17-Pt-NH3), were synthesized and characterized by X-ray crystallography, elemental analysis, TG/DTA, FTIR, and solution {1H and 31P} NMR spectroscopy. The characterization results showed that the two platinum(II) moieties, [cis-Pt(NH3)2]2+, [Pt(bpy)]2+, and [Pt(phen)]2+, were coordinated to the mono-vacant site of [XW11O39](12−n)− (Xn+ = Al3+, B3+, and Ge4+) and [α2-P2W17O61]10−. When the eight platinum(II) compounds, [(CH3)4N]3[α-PW11O39{cis-Pt(NH3)2}2]⋅10H2O (TMA-PW11-Pt-NH3), [(CH3)4N]4[α-SiW11O39{cis-Pt(NH3)2}2]·13H2O (TMA-SiW11-Pt-NH3), [(CH3)4N]4[α-GeW11O39{cis-Pt(NH3)2}2]·11H2O (TMA-GeW11-Pt-NH3), TMA-AlW11-Pt-NH3, TMA-BW11-Pt-NH3, Cs-GeW11-Pt-bpy, Cs-GeW11-Pt-phen, and Cs-P2W17-Pt-NH3 were used as photocatalysts for hydrogen evolution from aqueous triethanolamine (TEOA) solution under the light irradiation, Cs-P2W17-Pt-NH3 exhibited the highest activities among the eight diplatinum(II) compounds.
中文翻译：
合成和α-Keggin-的表征和α 2 -Dawson型二铂（II）配位的polyoxotungstates：骨骼构造，内部元件，和含氮的影响配位体配位到光照射下的铂中心制氢从水
二铂的四甲基铵和铯盐（II）配合物组成的单缺位α-Keggin-和α的2 -Dawson型polyoxotungstates，[（CH 3）4 N] 4 H [α-ALW 11 ö 39 {顺式-Pt （NH 3）2 } 2 ]⋅11H 2 O（TMA-ALW 11 -Pt-NH 3），[（CH 3）4 N] 4 H [α-BW 11 ö 39 {顺式-Pt（NH 3）2 } 2 ]⋅9H 2O（TMA-BW 11 -Pt-NH 3），CS 4 [α-GEW 11 ö 39 {的Pt（BPY）} 2 ]⋅10H 2 O（BPY = 2,2'-联吡啶;铯GEW 11 -Pt -bpy），CS 3.5 ħ 0.5 [α-GEW 11 ö 39 {的Pt（苯）} 2 ]⋅3H 2 O（苯= 1,10-菲咯啉;铯GEW 11 -Pt -苯基），和Cs 6 [ α 2 -P 2 w ^ 17 ö 61 {顺式-Pt（NH 3）2 } 2 ]⋅13H 2 O（铯-P 2 w ^ 17 -Pt-NH 3），被合成和表征通过X射线晶体学，元素分析，TG / DTA，FTIR和溶液{ 1 H和31 P NMR光谱。表征结果表明，两个铂（II）部分[顺式-Pt（NH 3）2 ] 2 +，[Pt（bpy）] 2+和[Pt（phen）] 2+与单价配位。 [XW 11 O 39 ] （12− n）−（X的空位Ñ + =铝3+，B 3+，和Ge 4+）和[α 2 -P 2 w ^ 17 ö 61 ] 10-。当八个铂（II）的化合物，[（CH 3） 4 N] 3 [α-PW 11 ö 39 {顺式-Pt（NH 3） 2 } 2 ]⋅10H 2 O（ TMA-PW 11 -Pt-NH 3）[（CH 3） 4 N] 4 [α-硅钨酸11 ö 39{顺式-Pt（NH 3）2 } 2 ]·13H 2 O（TMA-硅钨酸11 -Pt-NH 3），[（CH 3）4 N] 4 [α-GEW 11 ö 39 {顺式-Pt（NH 3）2 } 2 ]·11H 2 O（TMA-GeW 11 -Pt-NH 3），TMA-AlW 11 -Pt-NH 3，TMA-BW 11 -Pt-NH 3，Cs-GeW 11 -Pt-bpy，Cs-GeW 11 -Pt-phen和Cs-P 2 W 17 -Pt-NH 3用作光催化剂，在光照射下从三乙醇胺水溶液（TEOA）析出氢，Cs-P 2 W 17 -Pt- NH 3在八个双铂（II）化合物中表现出最高的活性。
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