Self-assembly between Pt(phen)(edt) (phen=phenanthroline, edt=1,2-ethanedithiolate) and Cu(PPh3)2(MeCN)2(ClO4) (PPh3=triphenylphosphine) gave rise to formation of heterohexanuclear complex Pt4Cu2(edt)4(PPh3)6(ClO4)2(4...Self-assembly between Pt(phen)(edt) (phen=phenanthroline, edt=1,2-ethanedithiolate) and Cu(PPh3)2(MeCN)2(ClO4) (PPh3=triphenylphosphine) gave rise to formation of heterohexanuclear complex Pt4Cu2(edt)4(PPh3)6(ClO4)2(4H2O) (1). The complex was characterized by elemental analyses, ES-MS, UV-Vis, IR, 31P NMR spectroscopy and X-ray crystallography. The molecule consists of two Pt2Cu(edt)2(PPh3)3 units which has a centrosymmmetric inversion to give a cyclic heterohexanuclear skeleton. The PtⅡ and CuⅠ center adopt square-planar and trigonal coordination modes, respectively. The compound shows intense emission at 632 nm in the solid state and at 678 nm in frozen dichloromethane glass at 77 K.展开更多
目的:利用SanderⅡ功能矫治器的腭导杆、上颌镍钛螺旋扩弓簧和下颌扩弓簧、分体式的独特设计,矫治Angl eⅡ类1分类患者生长高峰前期或高峰期、替牙晚期或恒牙早期的深覆牙合、深覆盖患者。方法:病例纳入标准为Angl eⅡ类1分类生长高峰...目的:利用SanderⅡ功能矫治器的腭导杆、上颌镍钛螺旋扩弓簧和下颌扩弓簧、分体式的独特设计,矫治Angl eⅡ类1分类患者生长高峰前期或高峰期、替牙晚期或恒牙早期的深覆牙合、深覆盖患者。方法:病例纳入标准为Angl eⅡ类1分类生长高峰前期或高峰期、替牙晚期或恒牙早期的深覆牙合、深覆盖患者,下颌平面角为均角或底角。共有13人配戴SanderⅡ功能矫治器1年,拍治疗前后头颅定位侧位片。用西安交通大学口腔医院正畸科X线头影测量分析方法分析治疗前后X线测量数据,并用SPSS18.0软件配对t检验进行统计学处理。结果:ANB°、ANS-Pt m、Co-Pg、U1-APg、L1-NB距、L1-NB角、L6-MP、UL-El i ne、∠N'-Sn-Pg<0.01有非常显著统计学意义;Wi t s值、NA-Pg、U1-SN角、U6-PP、∠N'-Pg'-FH,P<0.05有显著统计学意义。结论:上下颌骨相对位置改变明显,导下颌前伸明显、上颌基骨长度有增长;下颌基骨长度增长显著;面凸角变小;上颌前牙内收明显,上下第一磨牙伸长,下面高增长,但相对全面高协调。软组织上唇突度减小、颏部前移,软组织侧貌与骨组织改建一致。展开更多
文摘Self-assembly between Pt(phen)(edt) (phen=phenanthroline, edt=1,2-ethanedithiolate) and Cu(PPh3)2(MeCN)2(ClO4) (PPh3=triphenylphosphine) gave rise to formation of heterohexanuclear complex Pt4Cu2(edt)4(PPh3)6(ClO4)2(4H2O) (1). The complex was characterized by elemental analyses, ES-MS, UV-Vis, IR, 31P NMR spectroscopy and X-ray crystallography. The molecule consists of two Pt2Cu(edt)2(PPh3)3 units which has a centrosymmmetric inversion to give a cyclic heterohexanuclear skeleton. The PtⅡ and CuⅠ center adopt square-planar and trigonal coordination modes, respectively. The compound shows intense emission at 632 nm in the solid state and at 678 nm in frozen dichloromethane glass at 77 K.
文摘目的:利用SanderⅡ功能矫治器的腭导杆、上颌镍钛螺旋扩弓簧和下颌扩弓簧、分体式的独特设计,矫治Angl eⅡ类1分类患者生长高峰前期或高峰期、替牙晚期或恒牙早期的深覆牙合、深覆盖患者。方法:病例纳入标准为Angl eⅡ类1分类生长高峰前期或高峰期、替牙晚期或恒牙早期的深覆牙合、深覆盖患者,下颌平面角为均角或底角。共有13人配戴SanderⅡ功能矫治器1年,拍治疗前后头颅定位侧位片。用西安交通大学口腔医院正畸科X线头影测量分析方法分析治疗前后X线测量数据,并用SPSS18.0软件配对t检验进行统计学处理。结果:ANB°、ANS-Pt m、Co-Pg、U1-APg、L1-NB距、L1-NB角、L6-MP、UL-El i ne、∠N'-Sn-Pg<0.01有非常显著统计学意义;Wi t s值、NA-Pg、U1-SN角、U6-PP、∠N'-Pg'-FH,P<0.05有显著统计学意义。结论:上下颌骨相对位置改变明显,导下颌前伸明显、上颌基骨长度有增长;下颌基骨长度增长显著;面凸角变小;上颌前牙内收明显,上下第一磨牙伸长,下面高增长,但相对全面高协调。软组织上唇突度减小、颏部前移,软组织侧貌与骨组织改建一致。
