A method of spectrophotometric determination of micro amounts of platinum with MPT was proposed.Beers law is obeyed in the range of 0～3.7mg·L1Pt（Ⅳ）,an apparent molar absorptivity of ε682.0=5.46×104L...A method of spectrophotometric determination of micro amounts of platinum with MPT was proposed.Beers law is obeyed in the range of 0～3.7mg·L1Pt（Ⅳ）,an apparent molar absorptivity of ε682.0=5.46×104L·mol-1·cm-1.The method has been applied to the determination of platinum in minerals and catalysts with satisfactory results.展开更多
The crystal structure of N-benzoyl-N’-4-methylphenylthiourea（BMPT）was determined by x-ray diffraction with erystallographic data as p21/c,a=12.948（8）*!,b=5.398（3）*!,c=19.790（12）*!,β=80.923（7）O,V=1365.9（14...The crystal structure of N-benzoyl-N’-4-methylphenylthiourea（BMPT）was determined by x-ray diffraction with erystallographic data as p21/c,a=12.948（8）*!,b=5.398（3）*!,c=19.790（12）*!,β=80.923（7）O,V=1365.9（14）*!3,Z=4.The intromolecular hydrogen bond of N-benzoyl-N’-（4-methyl）phenylthiourea was discussed.The results of the extended MO calculations using density functional theory（DFT）with a hybrid B3LYP density functional were qualitatively supported by experimental X-ray diffraction stueies on the title compound at the level of 6-311G*.展开更多
文摘A method of spectrophotometric determination of micro amounts of platinum with MPT was proposed.Beers law is obeyed in the range of 0～3.7mg·L1Pt（Ⅳ）,an apparent molar absorptivity of ε682.0=5.46×104L·mol-1·cm-1.The method has been applied to the determination of platinum in minerals and catalysts with satisfactory results.
文摘The crystal structure of N-benzoyl-N’-4-methylphenylthiourea（BMPT）was determined by x-ray diffraction with erystallographic data as p21/c,a=12.948（8）*!,b=5.398（3）*!,c=19.790（12）*!,β=80.923（7）O,V=1365.9（14）*!3,Z=4.The intromolecular hydrogen bond of N-benzoyl-N’-（4-methyl）phenylthiourea was discussed.The results of the extended MO calculations using density functional theory（DFT）with a hybrid B3LYP density functional were qualitatively supported by experimental X-ray diffraction stueies on the title compound at the level of 6-311G*.
