Novel complexes of tris(aminomethyl)phosphanes with platinum(II): Structural, spectroscopic, DFT and biological activity studies
摘要:
Two new platinum(II) complexes with tris(aminomethyl)phosphanes: [trans-PtCl2{P(CH2N(CH2CH2)(2)-NCH3)(3))(2)] (1Pt) and trans-PtCl2{P(CH2N(CH2CH2)(2)O)(3))(2)] (2Pt) were prepared and characterized with NMR and UV-Vis spectroscopies. Their structures were investigated by X-ray crystallography and DFT methods. TDDFT calculations were employed to interpret the electronic spectra of the complexes. Obtained results are not unequivocal, however population analysis indicate, that the character of HOMO and HOMO-1 orbitals depend strongly on the electron donoring properties of the phosphane ligand. Biological activity of 2Pt complex, which is more stable and more soluble in polar solvents than 1Pt, was examined in vitro on the Vero cell line (IC50 = 12.5 mu M). At higher concentrations it induces apoptosis, probably due to changes of the cell cytoskeleton. Luminescence quenching studies and CD spectroscopy of interactions of 2Pt with HSA and BSA indicate that these albumins bind the complex slightly - without altering their tertiary structures, however HSA interacts with 2Pt noticeably stronger than BSA. It was also found that 2Pt does not cleave supercoiled pUC18 plasmid. (C) 2011 Elsevier Ltd. All rights reserved.
New ruthenium(<scp>ii</scp>) coordination compounds possessing bidentate aminomethylphosphane ligands: synthesis, characterization and preliminary biological study in vitro
作者:Michał Płotek、Radosław Starosta、Urszula K. Komarnicka、Agnieszka Skórska-Stania、Małgorzata Jeżowska-Bojczuk、Grażyna Stochel、Agnieszka Kyzioł
DOI:10.1039/c5dt01119a
日期:——
First examples of Ru(ii) complexes possessing P,N-bidentate aminomethylphosphanes.
首个具有P,N-双齿胺甲基膦配体的Ru(II)配合物的示例。
Solid state luminescence of copper(i) (pseudo)halide complexes with neocuproine and aminomethylphosphanes derived from morpholine and thiomorpholine
作者:Radosław Starosta、Urszula K. Komarnicka、Małgorzata Puchalska、Maciej Barys
DOI:10.1039/c2nj40229g
日期:——
The copper(I) iodide or copper(I) isothiocyanate complexes with 2,9-dimethyl-1,10-phenanthroline (dmp) and two interesting aminomethylphosphanes: P(CH2N(CH2CH2)2O)3 (1) and novel P(CH2N(CH2CH2)2S)3 (2): CuI(dmp)P(CH2N(CH2CH2)2O)3 (1I), which was presented in our previous papers, CuI(dmp)P(CH2N(CH2CH2)2S)3 (2I), CuNCS(dmp)P(CH2N(CH2CH2)2O)3 (1T) and CuNCS(dmp)P(CH2N(CH2CH2)2S)3 (2T) are discussed in
Tertiary to secondary reduction of aminomethylphosphane derived from 1-ethylpiperazine as a result of its coordination to ruthenium(II) centre – The first insight into the nature of process
作者:Michał Płotek、Radosław Starosta、Urszula K. Komarnicka、Agnieszka Skórska-Stania、Przemysław Kołoczek、Karol Dudek、Agnieszka Kyzioł
DOI:10.1016/j.molstruc.2016.05.053
日期:2016.10
2O}2(PPh3)2]BF4 (2A′). DFT calculations (B3LYP with the D95V(d,p) basis set for C, N, H and O and LanL2DZ with Los Alamos ECPs for Ru, P and Cl) revealed that the binding of aminomethylphosphanes to the ruthenium centre leads to the P Cbonds elongation, which may finally result in breaking one of them and phosphane’s reduction from tertiary to secondary ones.
摘要 将叔氨基甲基磷烷 PCH2N(CH2CH2)2NCH2CH3}3 (B;tris1-[4-ethyl(tetrahydro-1,4-diazino)]methyl}phosphane) 引入 [Ru(η5-C5H5) 的甲醇溶液中Cl(PPh3)2] (1) 和 NaBF4,而不是直接取代氯化物导致氨甲基磷烷的 P CH2 键同时断裂。所得配合物[Ru(η5-C5H5)PHCH2N(CH2CH2)2NCH2CH3}2(PPh3)2]BF4(2B')通过光谱方法((NMR, IR, ESI-MS)及其固态结构进行了充分表征用单晶X射线衍射法测定,证明2B'的结构类似于先前合成的吗啉对应物[Ru(η5-C5H5)PHCH2N(CH2CH2)2O}2(PPh3)2]BF4 (2A'). DFT 计算(B3LYP,C、N、H 和 O 的 D95V(d,p) 基组和 LanL2DZ,Ru
Unexpected formation of [Ru(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)(PH{CH<sub>2</sub>N(CH<sub>2</sub>CH<sub>2</sub>)<sub>2</sub>O}<sub>2</sub>)(PPh<sub>3</sub>)<sub>2</sub>]BF<sub>4</sub> – the first “piano-stool” ruthenium complex bearing a secondary aminomethylphosphane ligand
作者:Michał Płotek、Radosław Starosta、Urszula K. Komarnicka、Agnieszka Skórska-Stania、Grażyna Stochel、Agnieszka Kyzioł、Małgorzata Jeżowska-Bojczuk
DOI:10.1039/c4ra13037e
日期:——
[Ru(η5-C5H5)(PHCH2N(CH2CH2)2O}2)(PPh3)2]BF4 – unexpected formation of the first “piano-stool” ruthenium complex bearing a secondary aminomethylphosphane ligand.
Structures, electronic properties and solid state luminescence of Cu(i) iodide complexes with 2,9-dimethyl-1,10-phenanthroline and aliphatic aminomethylphosphines or triphenylphosphine
作者:Radosław Starosta、Małgorzata Puchalska、Joanna Cybińska、Maciej Barys、Anja V. Mudring
DOI:10.1039/c0dt01284j
日期:——
The luminescent complexes of triphenylphosphine and two interesting aminomethylphosphines: P(CH2N(CH2CH2)2NCH3)3 and P(CH2N(CH2CH2)2O)3 with copper(I) iodide and 2,9-dimethyl-1,10-phenanthroline (dmp): [CuI(dmp)PPh3], [CuI(dmp)P(CH2N(CH2CH2)2NCH3)3] and [CuI(phen)P(CH2N(CH2CH2)2O)3] are presented in this work. These complexes were characterized in solution by means of NMR spectroscopy and their structures