Salicylaldehyde O,O dimethyl phosphoramidothioic and their complexes of copper(Ⅱ),nicke(Ⅱ) and Zinc(Ⅱ) were synthesized and characterized by elemental analysis,electronic absorption spectrum,IR and molar conductivi...Salicylaldehyde O,O dimethyl phosphoramidothioic and their complexes of copper(Ⅱ),nicke(Ⅱ) and Zinc(Ⅱ) were synthesized and characterized by elemental analysis,electronic absorption spectrum,IR and molar conductivity.The schiffbase ligand was further ascertained by 1HNMR spectra.The composition coordination state and possible structures in these compounds were given.The tests of biological activity showed that synthesized complexes have scavenging effect on superoxide free radical similar SOD enzyme and these compounds are effective chemicals to kill tetranychus bimaculatus.展开更多
由二甲胺、亚磷酸、丙烯醛合成了3-(二甲胺基)烯丙基膦酸DMAAPA,再在硫酸亚铁铵/过氧化氢体系引发下与衣康酸共聚,得到了DMAAPA/IA共聚物。介绍了合成过程。通过红外光谱分析确认了DMAAPA的化学结构。在水灰比0.44,加有0.25%分散剂的基...由二甲胺、亚磷酸、丙烯醛合成了3-(二甲胺基)烯丙基膦酸DMAAPA,再在硫酸亚铁铵/过氧化氢体系引发下与衣康酸共聚,得到了DMAAPA/IA共聚物。介绍了合成过程。通过红外光谱分析确认了DMAAPA的化学结构。在水灰比0.44,加有0.25%分散剂的基础D级水泥中加入0.5%共聚物,水泥浆室温和90℃下的流型指数n值和K值(五次平行测定平均值)分别由3.376降至3.000,由0.0276Pa.sn降至0.0262Pa.sn;118℃、50 MPa下的稠化时间由74 m in延长至124 m in,稠化曲线趋于直角化;加剂量为0.5%和1.0%时,90℃养护24 h的抗压强度(三次平行测定平均值),由19.8 MPa分别降至18.4和15.5 MPa。讨论了该共聚物的缓凝机理。展开更多
A new mixed-metal sulfido incomplete cubane cluster [(MoCuS3) (O) (μ-dtp) (PPh3)3] Cdtp = S2P (OC2H5)2] has been prepared by reaction of (NH4)2MoOS3 with Cu(dtp) (PPh3)2 in dimethylformamide solution. It crystallizes...A new mixed-metal sulfido incomplete cubane cluster [(MoCuS3) (O) (μ-dtp) (PPh3)3] Cdtp = S2P (OC2H5)2] has been prepared by reaction of (NH4)2MoOS3 with Cu(dtp) (PPh3)2 in dimethylformamide solution. It crystallizes in the triclinic space group P1, a = 13.810(5), b = 19. 753(5), c=11. 719(4) A. α=99. 42(2), β=107. 24(3),γ=88. 05(3)°, V = 3012(2)A3, Dc = l. 51g/cm3and Z = 2. Final R=0. 046, Rw = 0. 056 for 7700 unique intensity data(I≥3σ(I)). The central unit [MoCu3S3]3+ can be described as a distorted incomplete cube with one missing corner. The Mo atom is tetrahedrally coordinated by three μ3-S atoms and one terminal O atom. Two Cu atoms are tetrahedrally coordinated whereas the third Cu atom has a highly distorted trigonal environment. The mean Mo - Cu bond length is 2. 752A. The Cu...Cu distances are in the range of 3. 200(1) -3. 740(1) A which are too long to form bonds.展开更多
OBJECTIVE: To evaluate the measurement of Samarium-153 ethylenediaminetetramethylene phosphonic acid ((153)Sm-EDTMP) bone uptake rate using whole-body scintigraphy and analyze the relationship between bone uptake rate...OBJECTIVE: To evaluate the measurement of Samarium-153 ethylenediaminetetramethylene phosphonic acid ((153)Sm-EDTMP) bone uptake rate using whole-body scintigraphy and analyze the relationship between bone uptake rate and therapeutic effect. METHODS: Sixty-six patients with painful bony metastases from prostate (n = 15), lung (n = 20), breast (n= 18), nasopharyngeal carcinoma (NPC) (n=5), colon (n=2), kidney (n=2) and unknown cause (n=4) carcinoma were examined with whole-body scintigraphy 10 min and 5 h post administration of (153)Sm-EDTMP. Bone uptake rate was then calculated. (1 ) Complete response (CR): disappearance of > 2 metastases, Karnofsky Performance Score (KPS) increase > 20, moderate or complete remission of bone pain 7 d post injection of (153)Sm-EDTMP. (2) Partial response (PR): disappearance of 1-2 metastases, KPS increase 10-20, moderate remission of bone pain in 3 wk. (3) Non-response (NR): no disappearance or shrinkage of metastases, KPS increase展开更多
文摘Salicylaldehyde O,O dimethyl phosphoramidothioic and their complexes of copper(Ⅱ),nicke(Ⅱ) and Zinc(Ⅱ) were synthesized and characterized by elemental analysis,electronic absorption spectrum,IR and molar conductivity.The schiffbase ligand was further ascertained by 1HNMR spectra.The composition coordination state and possible structures in these compounds were given.The tests of biological activity showed that synthesized complexes have scavenging effect on superoxide free radical similar SOD enzyme and these compounds are effective chemicals to kill tetranychus bimaculatus.
文摘由二甲胺、亚磷酸、丙烯醛合成了3-(二甲胺基)烯丙基膦酸DMAAPA,再在硫酸亚铁铵/过氧化氢体系引发下与衣康酸共聚,得到了DMAAPA/IA共聚物。介绍了合成过程。通过红外光谱分析确认了DMAAPA的化学结构。在水灰比0.44,加有0.25%分散剂的基础D级水泥中加入0.5%共聚物,水泥浆室温和90℃下的流型指数n值和K值(五次平行测定平均值)分别由3.376降至3.000,由0.0276Pa.sn降至0.0262Pa.sn;118℃、50 MPa下的稠化时间由74 m in延长至124 m in,稠化曲线趋于直角化;加剂量为0.5%和1.0%时,90℃养护24 h的抗压强度(三次平行测定平均值),由19.8 MPa分别降至18.4和15.5 MPa。讨论了该共聚物的缓凝机理。
文摘A new mixed-metal sulfido incomplete cubane cluster [(MoCuS3) (O) (μ-dtp) (PPh3)3] Cdtp = S2P (OC2H5)2] has been prepared by reaction of (NH4)2MoOS3 with Cu(dtp) (PPh3)2 in dimethylformamide solution. It crystallizes in the triclinic space group P1, a = 13.810(5), b = 19. 753(5), c=11. 719(4) A. α=99. 42(2), β=107. 24(3),γ=88. 05(3)°, V = 3012(2)A3, Dc = l. 51g/cm3and Z = 2. Final R=0. 046, Rw = 0. 056 for 7700 unique intensity data(I≥3σ(I)). The central unit [MoCu3S3]3+ can be described as a distorted incomplete cube with one missing corner. The Mo atom is tetrahedrally coordinated by three μ3-S atoms and one terminal O atom. Two Cu atoms are tetrahedrally coordinated whereas the third Cu atom has a highly distorted trigonal environment. The mean Mo - Cu bond length is 2. 752A. The Cu...Cu distances are in the range of 3. 200(1) -3. 740(1) A which are too long to form bonds.
文摘OBJECTIVE: To evaluate the measurement of Samarium-153 ethylenediaminetetramethylene phosphonic acid ((153)Sm-EDTMP) bone uptake rate using whole-body scintigraphy and analyze the relationship between bone uptake rate and therapeutic effect. METHODS: Sixty-six patients with painful bony metastases from prostate (n = 15), lung (n = 20), breast (n= 18), nasopharyngeal carcinoma (NPC) (n=5), colon (n=2), kidney (n=2) and unknown cause (n=4) carcinoma were examined with whole-body scintigraphy 10 min and 5 h post administration of (153)Sm-EDTMP. Bone uptake rate was then calculated. (1 ) Complete response (CR): disappearance of > 2 metastases, Karnofsky Performance Score (KPS) increase > 20, moderate or complete remission of bone pain 7 d post injection of (153)Sm-EDTMP. (2) Partial response (PR): disappearance of 1-2 metastases, KPS increase 10-20, moderate remission of bone pain in 3 wk. (3) Non-response (NR): no disappearance or shrinkage of metastases, KPS increase
