72121-34-7Relevant academic research and scientific papers
Facile synthesis of one-dimensional organometallic-organic hybrid polymers based on a diphosphorus complex and flexible bipyridyl linkers
Elsayed Moussa,Attenberger,Peresypkina,Fleischmann,Balázs,Scheer
, p. 10004 - 10007 (2016)
The selective synthesis of a series of new "ladderlike" one-dimensional organometallic-organic hybrid polymers is shown. The polymers are obtained from the reaction of the diphosphorus ligand complex [Cp2Mo2(CO)4(η2-P2)] with the copper salt [Cu(CH3CN)4]BF4 in the presence of flexible organic bipyridyl linkers in high selectivity. This unique behaviour is supported by DFT calculations.
Molecular recognition with ditopic cavitand re complexes
Busi, Marco,Cantadori, Barbara,Boccini, Francesca,De Zorzi, Rita,Geremia, Silvano,Dalcanale, Enrico
, p. 2629 - 2642 (2011)
The synthesis of a series of cavitand receptors bearing increasing numbers of phosphonate groups at their upper rims and of the corresponding Re-based ditopic complexes is reported. The molecular recognition properties of these phosphonate cavitands towar
Synthesis, crystal structure, and characterization of a novel coordinated polymer [HgI2L]2 [L = ethanediyl bis(isonicotinate)]
Wang, Hong-Mei,Liu, Mei,Wang, Qing-Li,Niu, Yun-Yin
, p. 1014 - 1017 (2011)
A novel coordinated polymer [HgI2L]2 was synthesized through the reaction of ethanediyl bis(isonicotinate) and HgI2 in mixed MeOH-THF (5:2). The crystal structural analysis indicated that the complex crystallized in the monoclinic space group P21/c, a= 10.8575(10), b = 19.8946(19), c = 8.8408(8), = 95.4690(10), V = 1901.0(3) 3, Z = 4. The complex possessed a novel three-dimensional supramolecular framework formed by hydrogen bonds among repeating [HgI2L]2 dimeric units. Its decomposition process is very simple, and decomposition with an apparently endothermal process takes place at the same time. Copyright Taylor & Francis Group, LLC.
Design and structural analysis of metallamacrocycles based on a combination of ethylene glycol bearing pyridine units with zinc, cobalt and mercury
Grosshans, Philippe,Jouaiti, Abdelaziz,Bulach, Veronique,Planeix, Jean-Marc,Hosseini, Mir Wais,Kyritsakas, Nathalie
, p. 453 - 458 (2004)
In the presence of MX2 salts, ligand 1 (in a M/L ratio of 2:2, M = Zn, Hg, Co, X = Cl or I), based on the ethylene glycol fragment bearing two pyridine units as monodentate coordination sites, leads to isostructural square-shaped neutral metallamacrocycles as demonstrated by X-ray diffraction on single crystals. For all dinuclear complexes generated, the dicationic metal centre adopts a distorted tetrahedral coordination geometry and its coordination sphere is composed of the X2N2 set of coordinating atoms. For all complexes, the parallel packing of the cyclic structures generates channels which are occupied by solvent molecules. The solvent molecules, which behave as substrates, are positioned within the cavity of the metallamacrocycles. Control of the dimension of the macrocycles, by varying the size of the connecting metal centre, has also been demonstrated. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.
Self-assembly of flexible supramolecular metallacyclic ensembles: Structures and adsorption properties of their nanoporous crystalline frameworks
Chatterjee, Biswaroop,Noveron, Juan C.,Resendiz, Marino J. E.,Liu, Jie,Yamamoto, Takuya,Parker, Daniel,Cinke, Martin,Nguyen, Cattien V.,Arif, Atta M.,Stang, Peter J.
, p. 10645 - 10656 (2004)
The syntheses, structures, and N2 adsorption properties of six new supramolecular metallacycles are reported. Flexible ditopic linkers, 1-4, with systematically varied lengths and conformational degrees of freedom were synthesized utilizing ester linkages. They were used in combination with (dppp)M(OTf)2, where M = PT(II) and Pd(II), and cis-(Me 3P)2Pt(OTf)2 to form flexible supramolecular metallacycles 5-10 in 88-98% isolated yields. Their structures were characterized via multinuclear NMR and X-ray crystallography. The metallacycles stack to form porous structures in the crystalline state. The pore dimensions depend on both the phosphorus ligands attached to the metals and the flexible linkers. Adsorption studies on the porous materials show that 5a, 6, 8, and 9 held 11.7, 16.5, 5.7, and 6.8 cm3/g STP of N2 at 77 K, respectively. A guest-exchange study with nitromethane and toluene reveals that the nanopore in 5 is flexible, a property which was transferred from the linker to the supramolecular structure in the solid state.
Binuclear dichlorido(η6-p-cymene)ruthenium(II) complexes with bis(nicotinate)- And bis (isonicotinate)-polyethylene glycol ester ligands
Eichhorn, Thomas,Hey-Hawkins, Evamarie,Maksimovi-Ivani, Danijela,Moji, Marija,Schmidt, Jürgen,Mijatovi, Sanja,Schmidt, Harry,Kaluderovi, Goran N.
, p. 20 - 25 (2015/01/30)
Neutral binuclear ruthenium complexes 1-8 of the general formula [{RuCl2(η6-p-cym)}2 μ-(N∩N)] (N∩N=bis(nicotinate)- and bis (isonicotinate)-polyethylene glycol esters: (3-py)COO(CH2CH2O)nCO(3-py) and (4-py)COO(CH2CH2O)nCO(4-py), n =1-4), as well as mononuclear [RuCl2(η6-p-cym)((3-py)COO(CH2CH2OCH3)-κN)], complex 9, were synthesized and characterized using elemental analysis and electrospray ionization high-resolution mass spectrometry, infrared, 1H NMR and 13C NMR spectroscopies. Stability of the binuclear complexes in the presence of dimethylsulfoxide was studied. Furthermore, formation of a cationic complex containing bridging pyridine-based bidentate ligand was monitored using 1H NMR spectroscopy. Ligand precursors, polyethylene glycol esters of nicotinic (L1·2HCl-L4·2HCl and L9·HCl) and isonicotinic acid dihydrochlorides (L5·2HCl-L8·2HCl), binuclear ruthenium(II) complexes 1-8 and mononuclear complex 9 were tested for in vitro cytotoxicity against 518A2 (melanoma), 8505C (anaplastic thyroid cancer), A253 (head and neck tumour), MCF-7 (breast tumour) and SW480 (colon carcinoma) cell lines.
Nanoscaled inclusion complexes of β-cyclodextrin with binuclear compounds based on diols containing fragments of selected aromatic monocarboxylic acids
Kurochkina,Grachev,Batalova
, p. 753 - 757 (2014/06/09)
Stable nanoscaled mono- and dimeric inclusion complexes of β-cyclodextrin with hosts based on symmetric diols of various length containing fragments of benzoic, nicotinic, or isonicotinic acid were synthesized.
Host-guest-driven copolymerization of tetraphosphonate cavitands
Tancini, Francesca,Yebeutchou, Roger M.,Pirondini, Laura,Dezorzi, Rita,Geremia, Silvano,Scherman, Oren A.,Dalcanale, Enrico
experimental part, p. 14313 - 14321 (2011/03/19)
The outstanding complexing properties of tetraphosphonate cavitands towards N-methylpyridinium salts were exploited to realise a new class of linear and cyclic AABB supramolecular polymers through host-guest interactions. The effectiveness of the selected
