Platinum mononuclear complex, cis-[PtCl2(PyCN)2] (1, PyCN = 4-cyanopyridine), has been synthesized and characterized by single-crystal X-ray analysis. Compound 1 crystallizes as yellow plates from the reaction of a mi...Platinum mononuclear complex, cis-[PtCl2(PyCN)2] (1, PyCN = 4-cyanopyridine), has been synthesized and characterized by single-crystal X-ray analysis. Compound 1 crystallizes as yellow plates from the reaction of a mixture of K2PtCl4 and PyCN (=1:2) in H2O, that was left to stand at room temperature with the addition of Me2CO. Compound 1 forms the square-planar coordination geometry around the Pt atom coordinated to two Cl– ions and two pyridines of PyCN ligands in cis position. Single crystal of 1 shows the temperature dependent phase transition around 140 K, where the crystal space groups change from P21/c (high temperature) to (low temperature), which is caused by the stabilization of intermolecular interaction.展开更多
目前XRD内标法定量相分析存在标样难以获取、成本高,试验过程不一致导致不同实验室测试结果没有可比性等问题。针对该问题,笔者提出以晶体结构数据为依据,通过理论计算获得XRD内标法定量相分析的标准曲线来进行定量分析。并在Philips X...目前XRD内标法定量相分析存在标样难以获取、成本高,试验过程不一致导致不同实验室测试结果没有可比性等问题。针对该问题,笔者提出以晶体结构数据为依据,通过理论计算获得XRD内标法定量相分析的标准曲线来进行定量分析。并在Philips X’Pert Pro MPD衍射仪上用刚玉等5种标准样品进行了实际测试验证,结果表明该方法具有可行性。最后在此基础上提出建立XRD内标法定量相分析标准曲线库的设想和具体的方案。展开更多
文摘Platinum mononuclear complex, cis-[PtCl2(PyCN)2] (1, PyCN = 4-cyanopyridine), has been synthesized and characterized by single-crystal X-ray analysis. Compound 1 crystallizes as yellow plates from the reaction of a mixture of K2PtCl4 and PyCN (=1:2) in H2O, that was left to stand at room temperature with the addition of Me2CO. Compound 1 forms the square-planar coordination geometry around the Pt atom coordinated to two Cl– ions and two pyridines of PyCN ligands in cis position. Single crystal of 1 shows the temperature dependent phase transition around 140 K, where the crystal space groups change from P21/c (high temperature) to (low temperature), which is caused by the stabilization of intermolecular interaction.
文摘目前XRD内标法定量相分析存在标样难以获取、成本高,试验过程不一致导致不同实验室测试结果没有可比性等问题。针对该问题,笔者提出以晶体结构数据为依据,通过理论计算获得XRD内标法定量相分析的标准曲线来进行定量分析。并在Philips X’Pert Pro MPD衍射仪上用刚玉等5种标准样品进行了实际测试验证,结果表明该方法具有可行性。最后在此基础上提出建立XRD内标法定量相分析标准曲线库的设想和具体的方案。
