A novel platinum(Ⅳ) complex [Ph3PEt]2[PtCl6] 1 obtained from the reaction of H2PtCl6 and [Ph3PEt]I (Ph3PEt^+ = ethyl-triphenylphosphenonium) has been structurally characterized. It crystallizes in triclinic, spa...A novel platinum(Ⅳ) complex [Ph3PEt]2[PtCl6] 1 obtained from the reaction of H2PtCl6 and [Ph3PEt]I (Ph3PEt^+ = ethyl-triphenylphosphenonium) has been structurally characterized. It crystallizes in triclinic, space group P1 with a = 10.20850(10), b = 10.33870(10), c = 10.814 .A a = 79.453(12), β = 66.879( 11 ), γ = 72.461 (10)°, V = 998.14(9) A^3, Z = 1, Dc = 1.648 g/cm^3, μ(MoKa) = 4.025 mm^-1, F(000) = 490, C40H40Cl6P2Pt, Mr = 990.44, the final R = 0.0270 and wR = 0.0617 for 5787 observed reflections with 1 〉 2σ(Ⅰ). Structure analysis indicates that the platinum atom almost has the ideal octahedral coordination geometry of PtCl6. The quaternary phosphate cations (Ph3PEt^+) acting as counter ions are in combination with PtCl6 anions by static attracting forces and H-bonds. Upon the hydrogen bonds existing between cations and anions, the whole structure represents a chain-like construction. Based on the crystal data, quantum chemistry calculation at the DFT/B3LPY level was carded out to reveal the electronic structure of 1.展开更多
目的:探讨全髋关节置换术的CroweⅢ-Ⅳ型发育性髋关节发育不良(developmental dysplasia of the hip,DDH)患者的满意度及造成不满意的相关因素。方法:回顾性分析2013年3月至2018年3月行全髋关节置换术的169例CroweⅢ-Ⅳ型DDH患者,通过...目的:探讨全髋关节置换术的CroweⅢ-Ⅳ型发育性髋关节发育不良(developmental dysplasia of the hip,DDH)患者的满意度及造成不满意的相关因素。方法:回顾性分析2013年3月至2018年3月行全髋关节置换术的169例CroweⅢ-Ⅳ型DDH患者,通过微信进行调查问卷,调查患者对手术总体满意度、10项日常功能满意度和患者认为对自己日常生活影响比较大的前5个问题。手术前后采用髋关节Harris评分进行功能评价。结果:收到完整调查问卷145份,所有患者获随访,时间1~5(3.23±1.22)年。145例患者分成两组,其中对手术疗效满意的118例,不满意的27例,手术总体满意率81.38%(118/145)。患者认为对生活影响比较大的前5个问题分别是术后髋部疼痛,肢体明显不等长、行走、上下楼梯、蹲起。两组术前Harris评分比较,差异无统计学意义(P>0.05),不满意组术后Harris评分较低。术后髋关节疼痛、肢体不等长是影响手术不满意的直接因素。结论:采用全髋关节置换术治疗CroweⅢ-Ⅳ型DDH患者手术难度大;术后髋关节疼痛(轻度以上),肢体不等长(>2 cm)是术后不满意的独立危险因素。展开更多
Pt(Ⅳ) was quantitatively adsorbed by D301R resin in the medium of pH = 3.47. The statically saturated adsorption capacity is 410 mg/g. Pt(Ⅳ) adsorbed on D301R resin can be eluted by 1.0-2.0 mol/L NaOH. The rate ...Pt(Ⅳ) was quantitatively adsorbed by D301R resin in the medium of pH = 3.47. The statically saturated adsorption capacity is 410 mg/g. Pt(Ⅳ) adsorbed on D301R resin can be eluted by 1.0-2.0 mol/L NaOH. The rate constant is k298 = 5.43 × 10^-5 s^-1. The adsorption of Pt(Ⅳ) on D301R resin obeys the Freundlich isotherm. The adsorption parameters of thermodynamics are as follows: enthalpy change AH = 4.37 kJ/mol, Gibbs free energy change AG = -5.39 kJ/mol, and entropy change AS = 32.76 J/(mol.K). The apparent activation energy is Ea = 22.5 kJ/mol. The coordination molar ratio of the functional group of D301R resin to Pt(Ⅳ) is 2:1.展开更多
基金This work was supported by the Foundation of Education Committee of Fujian Province (JB03052, JB04016, JB04017) and the Student Research Training Program (SRTP) (04075)
文摘A novel platinum(Ⅳ) complex [Ph3PEt]2[PtCl6] 1 obtained from the reaction of H2PtCl6 and [Ph3PEt]I (Ph3PEt^+ = ethyl-triphenylphosphenonium) has been structurally characterized. It crystallizes in triclinic, space group P1 with a = 10.20850(10), b = 10.33870(10), c = 10.814 .A a = 79.453(12), β = 66.879( 11 ), γ = 72.461 (10)°, V = 998.14(9) A^3, Z = 1, Dc = 1.648 g/cm^3, μ(MoKa) = 4.025 mm^-1, F(000) = 490, C40H40Cl6P2Pt, Mr = 990.44, the final R = 0.0270 and wR = 0.0617 for 5787 observed reflections with 1 〉 2σ(Ⅰ). Structure analysis indicates that the platinum atom almost has the ideal octahedral coordination geometry of PtCl6. The quaternary phosphate cations (Ph3PEt^+) acting as counter ions are in combination with PtCl6 anions by static attracting forces and H-bonds. Upon the hydrogen bonds existing between cations and anions, the whole structure represents a chain-like construction. Based on the crystal data, quantum chemistry calculation at the DFT/B3LPY level was carded out to reveal the electronic structure of 1.
文摘目的:探讨全髋关节置换术的CroweⅢ-Ⅳ型发育性髋关节发育不良(developmental dysplasia of the hip,DDH)患者的满意度及造成不满意的相关因素。方法:回顾性分析2013年3月至2018年3月行全髋关节置换术的169例CroweⅢ-Ⅳ型DDH患者,通过微信进行调查问卷,调查患者对手术总体满意度、10项日常功能满意度和患者认为对自己日常生活影响比较大的前5个问题。手术前后采用髋关节Harris评分进行功能评价。结果:收到完整调查问卷145份,所有患者获随访,时间1~5(3.23±1.22)年。145例患者分成两组,其中对手术疗效满意的118例,不满意的27例,手术总体满意率81.38%(118/145)。患者认为对生活影响比较大的前5个问题分别是术后髋部疼痛,肢体明显不等长、行走、上下楼梯、蹲起。两组术前Harris评分比较,差异无统计学意义(P>0.05),不满意组术后Harris评分较低。术后髋关节疼痛、肢体不等长是影响手术不满意的直接因素。结论:采用全髋关节置换术治疗CroweⅢ-Ⅳ型DDH患者手术难度大;术后髋关节疼痛(轻度以上),肢体不等长(>2 cm)是术后不满意的独立危险因素。
基金This project was financially supported by the Natural Science Foundation of Zhejiang Province, China (No. 200072).
文摘Pt(Ⅳ) was quantitatively adsorbed by D301R resin in the medium of pH = 3.47. The statically saturated adsorption capacity is 410 mg/g. Pt(Ⅳ) adsorbed on D301R resin can be eluted by 1.0-2.0 mol/L NaOH. The rate constant is k298 = 5.43 × 10^-5 s^-1. The adsorption of Pt(Ⅳ) on D301R resin obeys the Freundlich isotherm. The adsorption parameters of thermodynamics are as follows: enthalpy change AH = 4.37 kJ/mol, Gibbs free energy change AG = -5.39 kJ/mol, and entropy change AS = 32.76 J/(mol.K). The apparent activation energy is Ea = 22.5 kJ/mol. The coordination molar ratio of the functional group of D301R resin to Pt(Ⅳ) is 2:1.