以4,4'-二氨基-二苯胺-2-磺酸代替苯胺,与1-羟基-7-氨基-3,6-二萘磺酸、间苯二胺、苯胺等合成无致癌作用的环保型黑色直接染料。探索了合成工艺及反应条件,并对其进行耐酸、耐碱等性能测试,用常规染色工艺对皮革进行染色应用。结果...以4,4'-二氨基-二苯胺-2-磺酸代替苯胺,与1-羟基-7-氨基-3,6-二萘磺酸、间苯二胺、苯胺等合成无致癌作用的环保型黑色直接染料。探索了合成工艺及反应条件,并对其进行耐酸、耐碱等性能测试,用常规染色工艺对皮革进行染色应用。结果表明,染料的上染率较高,染料的耐皂洗牢度和耐日晒牢度与直接黑L-3BG相当。产品中未含有22种致癌芳香胺,染料本身也无致癌作用,在碱性条件下不会分解出致癌芳香胺,是符合ECO-Tex Standard 100要求的新型染料。展开更多
A tripod ligand, 1,1,1 tri [1′ (2′ oxa 5′ oxo 6′ aza 6′ bisphenyl)hexyl] propane(L), and its complexes with Ln(NO 3) 3 · n H 2O(where Ln=La, Ce, Pr, Nd) have been synthesized. These new complexes with the ge...A tripod ligand, 1,1,1 tri [1′ (2′ oxa 5′ oxo 6′ aza 6′ bisphenyl)hexyl] propane(L), and its complexes with Ln(NO 3) 3 · n H 2O(where Ln=La, Ce, Pr, Nd) have been synthesized. These new complexes with the general formula of Ln 2L(NO 3) 6· n H 2O(where Ln=La, n =4; Ln=Pr, n =2; Ln=Ce, Nd, n =1) were characterized by elemental analysis, IR spectra, thermal analysis, 1H NMR spectra and molar conductivity. All the complexes are stable in air and their conductances in acetonitrile solution lie in the 149—158 S·cm 2·mol -1 range, indicating that they are 1∶1 type electrolytes. The IR and 1H NMR spectra of the ligand and its complexes show that all the ether oxygen atoms and the CO groups take part in coordination to the metal ions, and the larger shift for ν CO in the IR spectra of the complexes suggests that the Ln—O(carbonyl) bond is stronger than the Ln—O(ether) one which also was inferred from the 1H NMR spectral data . The thermal behaviour of the complexes are similar. The first loss occurs at 85—100.9 ℃ corresponding to the loss of all the water molecules. The weight losses found in this process compare favourably with the theoretical values. Moreover, the relatively low temperatures of dehydration are consistent with the presence of crystal water.展开更多
Reaction of the β diketimine compound (2,6 Me 2C 6H 3)NC(Me)CHC(Me)N(C 6H 3 2,6 Me 2)H (LH,1) with 1 equiv of n BuLi/hexane in THF,followed by crystallization from toluene,affords the β diketiminate lithium complex ...Reaction of the β diketimine compound (2,6 Me 2C 6H 3)NC(Me)CHC(Me)N(C 6H 3 2,6 Me 2)H (LH,1) with 1 equiv of n BuLi/hexane in THF,followed by crystallization from toluene,affords the β diketiminate lithium complex LLi(THF)(2)in high yields.The crystal structure of complex 2 was determined by X ray diffraction method.It crystallizes in monoclinic,space group P 2/(1)/ n with a =1 4036(5), b =1 3261(4), c =1 4248(5)nm, β =115 437(6)°, V =2 3950(13)nm 3,and D c =1 066Mg·m -3 for Z =4.In the structure,the metallacycle is almost fully planar,and the Li atom is coordinated by two nitrogen atoms of the β diketiminate ligand and one oxygen atom of THF molecule.展开更多
文摘以4,4'-二氨基-二苯胺-2-磺酸代替苯胺,与1-羟基-7-氨基-3,6-二萘磺酸、间苯二胺、苯胺等合成无致癌作用的环保型黑色直接染料。探索了合成工艺及反应条件,并对其进行耐酸、耐碱等性能测试,用常规染色工艺对皮革进行染色应用。结果表明,染料的上染率较高,染料的耐皂洗牢度和耐日晒牢度与直接黑L-3BG相当。产品中未含有22种致癌芳香胺,染料本身也无致癌作用,在碱性条件下不会分解出致癌芳香胺,是符合ECO-Tex Standard 100要求的新型染料。
文摘A tripod ligand, 1,1,1 tri [1′ (2′ oxa 5′ oxo 6′ aza 6′ bisphenyl)hexyl] propane(L), and its complexes with Ln(NO 3) 3 · n H 2O(where Ln=La, Ce, Pr, Nd) have been synthesized. These new complexes with the general formula of Ln 2L(NO 3) 6· n H 2O(where Ln=La, n =4; Ln=Pr, n =2; Ln=Ce, Nd, n =1) were characterized by elemental analysis, IR spectra, thermal analysis, 1H NMR spectra and molar conductivity. All the complexes are stable in air and their conductances in acetonitrile solution lie in the 149—158 S·cm 2·mol -1 range, indicating that they are 1∶1 type electrolytes. The IR and 1H NMR spectra of the ligand and its complexes show that all the ether oxygen atoms and the CO groups take part in coordination to the metal ions, and the larger shift for ν CO in the IR spectra of the complexes suggests that the Ln—O(carbonyl) bond is stronger than the Ln—O(ether) one which also was inferred from the 1H NMR spectral data . The thermal behaviour of the complexes are similar. The first loss occurs at 85—100.9 ℃ corresponding to the loss of all the water molecules. The weight losses found in this process compare favourably with the theoretical values. Moreover, the relatively low temperatures of dehydration are consistent with the presence of crystal water.
文摘Reaction of the β diketimine compound (2,6 Me 2C 6H 3)NC(Me)CHC(Me)N(C 6H 3 2,6 Me 2)H (LH,1) with 1 equiv of n BuLi/hexane in THF,followed by crystallization from toluene,affords the β diketiminate lithium complex LLi(THF)(2)in high yields.The crystal structure of complex 2 was determined by X ray diffraction method.It crystallizes in monoclinic,space group P 2/(1)/ n with a =1 4036(5), b =1 3261(4), c =1 4248(5)nm, β =115 437(6)°, V =2 3950(13)nm 3,and D c =1 066Mg·m -3 for Z =4.In the structure,the metallacycle is almost fully planar,and the Li atom is coordinated by two nitrogen atoms of the β diketiminate ligand and one oxygen atom of THF molecule.
