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Photochemical Synthesis, Properties and X‐Ray Crystal Structure of Tetrabutylammonium Dodecamolybdophosphate Heteropoly Blue
Author(s) -
Liu ShiZhong,
Li JianPing,
Feng XianHua,
Zhang ZhengWen,
Chen JunYang,
Wang Zheng,
Xing Yan,
Jia HengQing,
Lin YongHua
Publication year - 2002
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20020200307
Subject(s) - chemistry , crystallography , octahedron , crystal structure , triclinic crystal system , molecule , ion , valence (chemistry) , single crystal , organic chemistry
The title heteropoly blue, (Bu 4 N) 6 H 10 [PMo 11 VI Mo v O 40 ] 4 · H 2 O has been photochemically synthesized and characterized with elemental analysis, solid diffusion reflectance electronic spectra, CV, ESR, XFS, IR spectra, conductivity measurement and X‐ray single crystal analysis. The crystallographic data for C 96 H 218 Mo 48 N 6 O 169 P 4 are as follows: M r = 8889.76, triclinic, Pī , a = 1.4142 (3) nm, b = 2.6027 (5) nm, c = 2.6403 (5) nm, α= 113.96 (3)°, β = 90.05 (3)°, γ= 105.71 (3)°, V = 8.481 (3) nm 3 , Z = 1, D c = 1.741 g/cm 3 , F (000) = 4264, μ = 1.798 mm −1 . The X‐ray crystal structure analysis reveals that there is one independent molecule in the unit cell of the title heteropoly blue which contains four mixed‐valence heteropoly anions, six tetrabutylammonium cations and one water molecule. Its molecular structure possesses a centrosymmetrical arrangement in the unit cell. The phosphorus atom is in the crystallographic inversion center of the heteropoly anion and the eight oxygen atoms surrounding central phosphorus atom comprise of a distorted hexahedron. Heteropoly anion has two equal sets of PO 4 tetrahedron. The PO 4 tetrahedron and the MoO 6 octahedron in the polyanion are greatly distorted.