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N,N’-二羧甲基-2-甲基苯并咪唑内翁盐的合成及晶体结构 总被引:1,自引:0,他引:1
以2-甲基苯并咪唑为原料,合成了一个新型的苯并咪唑二羧酸衍生物,基结构通过IR,1HNMR,元素分析和X-射线单晶衍射法确定.X射线衍射单晶结构分析表明,固态时标题化合物通过分子间氢键形成一维无限链状结构,这些一维无限链状结构又通过链与链间的苯并咪唑环的π-π堆积作用形成二维结构.标题化合物的晶体属单斜晶系,P21/c空间群;Mr568.54,a=19.821(3),b=7,.4501(11),c=20.093 (3)A,β=116.479(3)°,v=2655.8(3)A3,z=4,Dc=1.422 mg· m-3,F(000)=1200,最终偏离因子R=0.0675,wR=0.2187. 相似文献
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N,N′-二羧甲基-2-甲基苯并咪唑内鎓盐的合成及晶体结构 总被引:1,自引:0,他引:1
以2-甲基苯并咪唑为原料,合成了一个新型的苯并咪唑二羧酸衍生物,基结构通过IR,1HNMR,元素分析和X-射线单晶衍射法确定。X射线衍射单晶结构分析表明,固态时标题化合物通过分子间氢键形成一维无限链状结构,这些一维无限链状结构又通过链与链间的苯并咪唑环的π-π堆积作用形成二维结构。标题化合物的晶体属单斜晶系,P21/c空间群;Mr:568.54,a=19.821(3),b=7,.4501(11),c=20.093(3),β=116.479(3),°v=2655.8(3)3,z=4,Dc=1.422 mg.m-3,F(000)=1200,最终偏离因子R=0.0675,wR=0.2187。 相似文献
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A new tripodal P,N ligand (C63H48N3O3P3) was prepared and characterized by elemental analysis, IR and single-crystal X-ray diffraction. The crystal belongs to the monoclinic system, space group P21/c with a = 13.013(3), b = 28.406(6), c = 14.911(3) A^°, β= 111.04(3)°, V= 5144.6(18) A^°^3 Z = 4, Dc = 1.276 g/cm^3, Mr = 987.95, λ(MoKa) = 0.71073 A^°,μ = 0.17 mm^-1, F(000) = 2064, R = 0.0786 and wR = 0.1545. A total of 43260 unique reflections were collected, of which 5112 with I 〉 2σ(I) were observed. The title compound has a central benzene ring, which is linked by -NH-CO- bonds to three 2-aminophenyltriphenylphosphium moieties, of which two with P(1) and P(2) centers are pointing to the same face of the central aryl ring, while the third one directs oppositely, forming a pseudo-propeller. In the crystal structure, there exist face-to-face π-π stacking interactions which increase the stability of the crystal structure. 相似文献
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2-(Hydroxyphenylamino)- and 2-(aminophenylamino)-4-methylquinolines and N,N′-bis(4-methylquinolin-2-yl)benzenediamines were synthesized by reactions of 2-chloro-4-methylquinolines with o-, m-, and p-aminophenols and o-, m-, and p-phenylenediamines. 相似文献
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《Journal of Coordination Chemistry》2012,65(11):1820-1826
Mononuclear O,O-coordinated complexes K2(MLCl2) M = Zn(II), Cd(II) and dinuclear complexes (MZnLCl2R2)x along with dinuclear N,N-coordinated complexes (M′ZnH2LCl2R2)y (where M = Zn(II), Cd(II), Hg(II) and M′ = M and Sn(IV); R = Cl, CH3; x = 0, ?2; y = 0, +2) of N′-1-,N′-2-dihydroxy-N-1-,N-2-dipyridin-2-ylethanedimidamide (H2L) have been prepared. All complexes have been characterized by 1H NMR, IR, EI-mass spectroscopy and elemental microanalysis. These results are in agreement with our prediction for structures of mono and dinuclear complexes of H2L and L?2 with Zn(II) in the gas phase by theoretical studies. 相似文献
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采用超声波辐射使2,2,6,6-四甲基-4-哌啶酮(俗称三丙酮胺)和己二胺在室温条件下发生亲核加成反应,加成产物经减压蒸馏脱除水分子生成西佛碱,收率达75%;然后,在55-80℃、1.9~2.0MPa条件下,以W-7型或T-4型骨架镍作催化剂,对该西佛碱氢化,得到N,N′-二(2,2,6,6-四甲基-4-哌啶基)-1,6己二胺。 相似文献
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《Journal of Coordination Chemistry》2012,65(20):3637-3651
The potentially tridentate N,N′,O-donor N-trans-(2′-hydroxycyclohexyl)-2-aminomethylpyridine (1) forms ML2 complexes with M(II)?=?Cu, Ni, and Zn. X-ray crystal structures of the isostructural Ni(II) and Zn(II) complexes confirm bis-tridentate coordination in significantly distorted octahedral geometries as the all-cis facial isomer. Structural comparisons with the previously reported all-trans facial Cu(II) and cis,cis,trans(Npy) facial Co(III) complexes are presented. Protonation constants for 1 and stability constants with Cu(II), Ni(II), and Zn(II) are reported, with both ML and ML2 species defined. The trend for ML (log K 1 values for Cu, Ni, and Zn of 8.3, 6.9, and 5.3, respectively) is conventional. Protonation and stability constants with Cu(II) for N,N-bis(2-pyridylmethyl)amine (2) were also defined. The log K 1 value measured for 2 of 7.4 is very similar to that found for 1 of 8.3, despite the marked difference in the third donor group; it appears that the third donor of the tridentate ligand generally binds only poorly to Jahn–Teller elongated Cu(II) in solution. 相似文献
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《理化检验(化学分册)》2010,(11)
预先制备了N,N′,N″-三(2-羟基-1-萘酚醛)胺作为配体(L),然后向含配体L的乙醇-二氯甲烷溶液中加入含稀土硝酸盐晶体RE(NO3)3.6 H2O(RE=La3+,Sm3+,Y3+,Tb3+,Ce3+,Eu3+)的乙醇溶液,合成稀土配合物。利用核磁共振法、元素分析法、摩尔电导法、红外光谱法及差热-热重法对稀土配合物的结构进行表征。结果表明:稀土配合物的结构为RE(NO3)3.L.4 H2O。采用荧光技术对稀土配合物的性能进行了研究,结果表明:在pH值约为7的介质中,以二甲亚砜(DMSO)为溶剂,稀土配合物浓度为1.0×10-4mol.L-1时,铽(Ⅲ)配合物有较强的特征荧光发射,铕(Ⅲ)配合物只表现了微弱的特征荧光发射,其他稀土配合物没有特征荧光发射。 相似文献
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N, N′-二吡啶基-3-亚甲基-1, 2-乙二胺-稀土硝酸盐配合物的合成与表征 总被引:6,自引:0,他引:6
在乙腈溶液中合成了N,N′-二吡啶基-3-亚甲基-1,2-乙二胺(L)的稀土硝酸盐系列配合物.利用元素分析、 红外光谱和差热-热重分析等手段对所合成的配合物进行了表征,结果表明合成的配合物都符合稀土金属离子与配体为1∶1的化学计量比,其组成可表示为[RE(NO3)3L]·nH2O [RELa(Ⅲ),Nd(Ⅲ),Eu(Ⅲ),Tb(Ⅲ),Er(Ⅲ),n2.5,1.5,1].另外,初步研究了其中Eu(Ⅲ)和Tb(Ⅲ)配合物在室温固体状态下的荧光性质,结果显示这两个配合物表现出相应的Eu(Ⅲ)和Tb(Ⅲ)离子的特征发射. 相似文献
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新的核苷衍生物N2,N3-亚乙烯基腺嘌呤核苷的合成 总被引:4,自引:0,他引:4
描述了一条有效的合成新的荧光核苷衍生物N2,N3-亚乙烯基腺苷的合成路线.实验中首先通过6步制备了N2,N3-亚乙烯基鸟苷,然后经过氯化,再氨化得到标题化合物.标题化合物和新的中间化合物的结构分别通过1H NMR, MS和HRMS进行了确证,标题化合物的荧光性质初步得到证实. 相似文献
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5,5-二甲基-2-氧代-2-(N,N'-对苯二胺基-二苄基)- 二-1,3,2-氧磷杂环己烷的合成及表征 总被引:1,自引:0,他引:1
以新戊二醇、三氯化磷和乙醇为原料制得中间体5,5-二甲基-1,3,2-二氧磷杂环己烷-2-氧(DPDO),用DPDO)与由芳醛和对苯二胺缩合制得的席夫碱SBⅠ~SBⅢ加成,合成了膨胀型阻燃剂5,5-二甲基-2-氧代-2-(N,N′-对苯二胺基-二苄基)-二-1,3,2-氧磷杂环己烷(DPPO Ⅰ~DPPOⅢ),通过元素分析,IR,NMR和MS对其结构进行表征,并对其在醇酸清漆中的应用进行了讨论. 相似文献