Synthesis, characterization of [{(N-methyl-N-benzyl)amino}methyl]ferrocenes and their cyclopalladated complexes: Crystal structure of σ-Pd[(η5-C5H5)Fe(η5-C5H3CH2N(CH3)CH2C6H4NO2-4)]Cl(PPh3)
摘要:
Condensation of aminomethylferrocene (1) and substituted benzaldehydes resulted in aldimines 2a-c which followed by reduction with sodium borohydride to give 3a-c. N-methylation of 3a-c with HCHO/NaCNBH3/HOAc led to 4a-c. Treatment of 4a-c with sodium palladium tetrachloride in the presence of sodium acetate afforded cleanly cyclopalladated 5a-c in which configurations consisted of the RNRC, SNSC. The preferable activation Of C-Ferrocenyl-H bond over C-Phenyl-H bond was also observed. All compounds 2-5 were characterized by elemental analysis, IR and H-1 NMR. In addition, the molecular structure of 5c was confirmed by single crystal X-ray diffraction. The possible mechanism for the formation of 5 was also discussed. (c) 2006 Elsevier B.V. All rights reserved.
Synthesis, characterization and light harvesting properties of Sb(III) and Bi(III) ferrocenyl dithiocarbamate complexes
摘要:
New Sb(III) and Bi(III) ferrocenyl dithiocarbamate complexes viz. [Sb(FcCH(2)Bzdtc)(3)] (Sb) and [Bi(FcCH(2)Bzdtc)(3)] (Bi) (Fc = C5H5FeC5H4-; Bz = C6H5CH2-) have been synthesized and characterized by elemental analyses, IR, H-1 and C-13 NMR spectroscopies. The optical, electrochemical and photovoltaic properties of the synthesized complexes were investigated. The light harvesting properties of both of the compounds have been studied using these compounds as photosensitizers in TiO2-based DSSCs. The photovoltaic devices fabricated by Sb and Bi showed a maximum current conversion efficiency of 1.51% and 0.97%, respectively under 1.5 AM illumination (100 mW cm(-2)) and having incident photon to current efficiency (IPCE) of 38% and 31%, respectively. The reason for the higher efficiency of Sb is due its higher dye loading. (C) 2015 Elsevier B.V. All rights reserved.
Synthesis of 2-<i>N</i>/<i>S</i>/<i>C</i>-Substituted Benzothiazoles via Intramolecular Cyclative Cleavage of Benzotriazole Ring
作者:Dhananjay Kumar、Bhuwan B. Mishra、Vinod K. Tiwari
DOI:10.1021/jo4024107
日期:2014.1.3
The synthesis of numerous 2-N/S/C-substituted benzothiazoles was achieved from substituted thiocarbonylbenzotriazoles via free-radical intramolecular cyclative cleavage of the benzotriazole ring in the presence of (TMS)3SiH and AIBN under mild conditions. The developed methodology demonstrates significant compatibility under microwave conditions and is important as it avoids the use of toxic metals
在温和条件下,在(TMS)3SiH和AIBN的存在下,通过苯并三唑环的自由基分子内环化裂解,由取代的硫代羰基苯并三唑实现了许多2-N / S / C-取代的苯并噻唑的合成。所开发的方法论证明了在微波条件下的显着兼容性,并且由于避免了使用有毒金属进行自由基环化,因此非常重要。
Syntheses, crystal, photoluminescence and electrochemical investigation of some new phenylmercury(ii) dithiocarbamate complexes involving ferrocene
作者:Nanhai Singh、Abhinav Kumar、Rajendra Prasad、Kieran C. Molloy、Mary F. Mahon
DOI:10.1039/b917871f
日期:——
phenylmercury(II) dithiocarbamate complexes incorporating the ferrocenyl moiety (C5H5)Fe(C5H4) (Fc), namely PhHgS2CN(CH2Fc)CH2C6H5, (1), PhHgS2CN(CH2Fc)CH(CH3)2, (2), PhHgS2CN(CH2Fc)(CH2)3CH3, (3) and [PhHgS2CN(CH2Fc)]2(CH2C6H4CH2), (4) have been prepared and characterized by elemental analysis, UV-Vis, IR, 1H and 13C NMR spectroscopies. The crystal structures of 1, 2 and 4 showed a linear core at the
一系列新的异双金属 苯汞(II)二硫代氨基甲酸酯含有二茂铁基部分(C 5 H 5)Fe(C 5 H 4)的配合物(Fc),即PhHgS 2 CN(CH 2 Fc)CH 2 C 6 H 5,(1),PhHgS 2 CN(CH 2 Fc)CH(CH 3)2,(2),PhHgS 2 CN(CH 2 Fc)( CH 2)3 CH 3,(3)和[PhHgS 2 CN(CH 2 Fc)] 2(CH 2 C 6 H 4 CH 2),(4已通过元素分析,UV-Vis,IR,1 H和13 C NMR光谱法制备并表征。的晶体结构1,2和4显示了在汞(线性芯II分子的)中心,由所述结合的硫 的原子 二硫代氨基甲酸酯 配体和 碳芳环的原子。在1和2的情况下,弱分子间Hg⋯S相互作用形成“头对尾”二聚体。4形成相似的二聚体结构,形成两对Hg⋯S相互作用以生成四金属单元。通过计算中性原子及其在理论密度函数水平(DFT
Organometallic derivatives. Part III. The displacement of hydroxy- and similar groups from α-substituted ferrocenylmethanes by aniline
作者:G. Marr、B. W. Rockett、A. Rushworth
DOI:10.1039/j39710004000
日期:——
Hydroxy-, dimethylamino-, phenoxy-, and piperidino-groups have been displaced by anilinefrom the corresponding α-substitutedferrocenylmethanes. The anilino-group has been displaced from anilinomethylferrocene by p-methoxyaniline. The nucleophilic character of the attacking group has been shown to be important in this displacement.
作者:Wallace W. H. Wong、David Curiel、Siu-Wai Lai、Michael G. B. Drew、Paul D. Beer
DOI:10.1039/b416851h
日期:——
polyferrocenyl zinc(II) dithiocarbamate macrocyclic receptors containing ferrocene groups on the macrocycle's periphery and/or as part of the cyclic cavity is reported. The assemblies have been characterised by a range of spectroscopic techniques, electrochemical studies and in two cases by X-ray structure determination. The ability of these host systems to bind and sense electrochemicallyanionic guest species