A novel polyoxomolybdate with a diprotonated porphyrin as counter‐cation, namely, 5,10,15,20‐tetrakis(4‐carboxyphenyl)‐21H,22H,23H,24H‐porphine(2+) hexamolybdate(VI) pentahydrate, (C₄₈H₃₂N₄O₈)[Mo₆O₁₉]·5H₂O or (H₂TCPP)[Mo₆O₁₉]·5H₂O, I, was prepared via the hydrothermal reaction of MoCl₅, 5,10,15,20‐tetrakis(4‐carboxyphenyl)‐21H,23H‐porphine (TCPP) and distilled water. The crystal structure of hydrated polyoxometalate (POM) salt I was characterized by single‐crystal X‐ray diffraction. The compound is characterized by an isolated (zero‐dimensional, 0D) structure, because it cannot extend via covalent bonds. The structure contains one [Mo₆O₁₉]²⁻ anion, one (H₂TCPP)²⁺ cation and five lattice water molecules. Each of the Mo⁶⁺ ions is six‐coordinated and displays a distorted octahedral motif. The (H₂TCPP)²⁺ cation displays a distorted saddle motif. A three‐dimensional (3D) supramolecular framework is formed via hydrogen‐bonding interactions. The compound shows a red photoluminescence emission.

中文翻译：

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新型聚氧钼酸盐卟啉的晶体结构和光物理性质

一种新型的含双质子化卟啉作为反阳离子的聚氧钼酸盐，即5,10,15,20-四（4-羧基苯基）-21 H，22 H，23 H，24 H-吗啡（2+）六钼酸盐（VI）通过MoCl ₅的水热反应制备五水合物（C ₄₈ H ₃₂ N ₄ O ₈）[Mo ₆ O ₁₉ ]·5H ₂ O或（H ₂ TCPP）[Mo ₆ O ₁₉ ]·5H ₂ O，I。，5,10,15,20-四（4-羧基苯基）-21 H，23 H-吗啡（TCPP）和蒸馏水。水合多金属氧酸盐（POM）盐I的晶体结构通过单晶X射线衍射表征。该化合物的特征是孤立的（零维，0D）结构，因为它不能通过共价键延伸。该结构包含一个[Mo ₆ O ₁₉ ] ^2-阴离子，一个（H ₂ TCPP）²⁺阳离子和五个晶格水分子。每个Mo ⁶⁺离子都是六配位的，并显示扭曲的八面体基序。（H ₂ TCPP）²⁺阳离子显示扭曲的鞍形图案。形成了三维（3D）超分子框架通过氢键相互作用。该化合物显示红色光致发光。