共查询到20条相似文献,搜索用时 0 毫秒
1.
空间不对称希夫碱(HCBP-PHEN-SALH)的合成和表征 总被引:1,自引:0,他引:1
报道了用控制反应物配比的方法,合成空间不对称希夫碱5-氯-2-羟基二苯甲酮缩邻苯二胶缩水杨醛(HCBP-PHEN-SALH),用红外光谱和核磁共振进行了结构表征。 相似文献
2.
以5,5'-亚甲基双水杨醛缩-2-(2-氨基苯胺基)-3-氰基-5-甲基噻吩希夫碱(L)和乙酸铜或乙酸镍为原料,合成了含噻吩双水杨醛希夫碱铜(Ⅱ)、镍(Ⅱ)配合物,用滴定分析、元素分析、红外光谱、紫外-可见光谱和热分析对配合物进行了组成和结构表征。该双核配合物的组成为[M_2L(H_2O)_2](M=Cu~(2+),Ni~(2+)),中心离子与来自配体的亚胺基氮原子、酚羟基氧原子和氨基氮原子以及来自配位水分子中的氧原子形成了4配位的双核对称希夫碱配合物,其在空气气氛中的热分解反应包括脱水、配体的氧化分解过程,最后残余物为CuO或NiO。 相似文献
3.
A new series of unsymmetrical macrocyclic complexes of tin(ll) has been prepared by the template process using bis(3-oxo-2-butylidene)propane-1,3-diamine as precursor. This affords a method to synthesize these complexes with various ring sizes. The tetradentate macrocyclic precursor [N(4)mL] reacts with SnCl(2) and different diamines in a 1:1:1 molar ratio in refluxing methanol to give complexes of the type [Sn(N(4)mL)Cl(2)]. The ring expansion has been achieved by varying the diamine between the two diacetyl amino nitrogen atoms. The macrocyclic precursor and its metal complexes have been characterized on the basis of elemental analysis, molar conductance, molecular weight determinations, IR, (1)H NMR,(13)C NMR, (119)Sn NMR and electronic spectral studies. An octahedral geometry around the metal ion is suggested for these complexes. On the basis of molecular weights and conductivity measurements, their monomeric and non-electrolytic nature has been confirmed. The precursor and complexes have been screened in vitro against a number of pathogenic fungi and bacteria to assess their growth inhibiting potential. The testicular sperm density and testicular sperm morphology, sperm motility, density of cauda epididymal spermatozoa and fertility in mating trails and biochemicals parameters of reproductive organs have been examined and discussed. 相似文献
4.
5.
以邻香兰素、对苯二胺、2-乙酰基吡嗪、水杨醛和4,4'-二氨基二苯醚为原料合成了四种新型对称Schiff碱,并与金属盐反应,培养了晶体。对配体及配合物进行了表征。 相似文献
6.
7.
8.
酰腙类化合物是由酰肼与醛或酮缩合而成的一类Schiff碱类化合物,具有独特的生物活性和较强的的抑菌、抗病毒和抗肿瘤的生物活性。本文以甲基丙烯酸甲酯、乙酰乙酸乙酯为反应物,分别与水合肼反应,生成了甲基丙烯酰肼与二乙酰肼,进一步缩合,得到未见报道的环戊酮甲基丙烯酰腙和丙酮二乙酰腙。 相似文献
9.
Younes Hanifehpour Nina Saraei Sanaz Mokhtari Asl Sang Woo Joo 《Journal of Inorganic and Organometallic Polymers and Materials》2012,22(6):1271-1278
Two new nano mercury(II) coordination compounds, [Hg2(μ-L1)(μ-I)2I3]n (1) and [Hg(L2)(I)2] (2) {L1?=?(E)-N′-(pyridin-2-ylmethylene)isonicotinohydrazide and L2?=?(E)-N′-(1-(pyridin-2-yl)ethylidene)isonicotinohydrazide} have been synthesized by a sonochemical method. The new nano-structures were characterized by scanning electron microscopy, X-ray powder diffraction, elemental analysis and IR spectroscopy. The compounds were also characterized by single crystal X-ray diffraction and the results indicate a 1D fishbone-like structure containing dinuclear units for 1 and a mononuclear structure for 2. In coordination polymer 1, the two Hg(II) centers are four coordinate into a chain-axis and also in the terminal linkages. In complex 2, the Hg(II) center is four coordinate. The chains of polymer 1 interact with each other through π–π stacking interactions which create a 3D framework. 相似文献
10.
11.
Facile Synthesis of CuO and Ag Nanoparticles by Thermal Decomposition of Novel Schiff Base Complexes
Abdelghany Mamdouh M. Ahmed Ibrahim S. Dessouki Hassan A. Abdelrahman Ehab A. 《Journal of Inorganic and Organometallic Polymers and Materials》2021,31(11):4281-4299
Journal of Inorganic and Organometallic Polymers and Materials - In this paper, a new Schiff base was synthesized via the condensation reaction between 3-methyl-4-amino-5-mercapto-1,2,4 triazole... 相似文献
12.
以天然碱性必需氨基酸L-赖氨酸和天然产物茴香醛为前体物,在无水体系中合成了新型L-赖氨酸席夫碱。测定产物熔点为209.4~209.7℃,采用红外光谱、紫外光谱、元素分析及TG&DTG等方法对产物进行了表征,推测出其分子式为C14H18N2O3K. 相似文献
13.
14.
15.
16.
17.
18.
Manganese(II) chloride reacts with trimethylsilyl triflate (TMS(OTf) where OTf = (-)OSO(2)CF(3)) in a 1:1 mixture of acetonitrile and tetrahydrofuran, and after recrystallization affords the linear coordination polymer [Mn(II)(CH(3)CN)(2)(OTf)(2)](n). Each distorted octahedral manganese(II) center in the polymeric chain has trans-acetonitriles and the remaining equatorial coordination positions are occupied by the bridging triflate anions. Dissolving [Mn(II)(CH(3)CN)(2)(OTf)(2)](n) in equal volumes of acetonitrile and pyridine followed by recrystallization with diethyl ether yields trans-[Mn(II)(C(5)H(5)N)(4)(OTf)(2)]. The distorted octahedral geometry of the manganese center features monodentate trans-triflate anions and four equatorial pyridines. Exposure of either [Mn(II)(CH(3)CN)(2)(OTf)(2)](n) or [Mn(II)(C(5)H(5)N)(4)(OTf)(2)] to water readily gives [Mn(II)(H(2)O)(6)](OTf)(2). XRD reveals hydrogen-bonding interactions between the [Mn(II)(H(2)O)(6)](2+) cation and the triflate anion. All three of these species are easily crystallized and provide convenient sources of manganese(II) for further synthetic elaboration. 相似文献
19.
Serhan Uruş Mustafa Dolaz Mehmet Tümer 《Journal of Inorganic and Organometallic Polymers and Materials》2010,20(4):706-713
A novel 4-((5-formyl-2,4-dihydroxyphenyl)diazenyl)benzylphosphonic acid (FPABP) ligand was synthesized and bound to silica-gel which was activated with 3-aminopropyltriethoxysilane (APTES). Cu(II), Co(II), Ni(II) and Mn(II) complexes of silica-supported ligand (FDPDABP) were synthesized. The ligand and its complexes were characterized by using NMR, FT-IR, elemental analysis, ICP-OES and scanning electron Microscope (SEM). Catalytic properties of the complexes were investigated for the selective oxidation of cyclohexane under microwave power. SiO2-FDPDABP-Cu(II) complex showed good catalytic activitiy for the selective oxidation of cyclohexane to cyclohexanol with 35.61% yield and cyclohexanone with 7.74% yield. 相似文献
20.
《精细化工》2017,(4)
以Al Cl3/Et3N为催化剂,4-氨基邻苯二甲腈、4-甲基苯甲醛和4-甲氧基苯甲醛为主要原料,制备了两种苯基席夫碱取代邻苯二甲腈,经四聚反应生成2(3),9(10),16(17),23(24)-四(4-甲基-苯甲亚胺基)锌酞菁(SPc)和2(3),9(10),16(17),23(24)-四(4-甲氧基-苯甲亚胺基)锌酞菁(SOPc)。利用FTIR、~1HNMR、~(13)CNMR和元素分析对其结构进行了表征,并通过UV-Vis考察了其性能。结果表明:SPc和SOPc的Q带相比于无取代酞菁分别红移了35 nm和43 nm,在450~600 nm范围内有吸收。SPc和SOPc在0.002~0.010 mmol/L的N,N-二甲基甲酰胺(DMF)溶液中,主要以单体形式存在,无聚集。用循环伏安法考察了产品的氧化还原性能,结果表明:SPc和SOPc的ELUMO值分别为-3.24、-3.29 e V,EHOMO值分别为-4.88、-4.71 e V,且SPc和SOPc的能级结构与纳米Ti O2的导带能级结构相匹配,实现了染料的再生。 相似文献