153531-54-5Relevant academic research and scientific papers
Iron complexes of BIANs: Redox trends and electrocatalysis of hydrogen evolution
Khrizanforova,Morozov,Khrizanforov,Lukoyanov,Kataeva,Fedushkin,Budnikova, Yu.H.
, p. 77 - 82 (2018)
We report new iron(II, III) complexes in the framework of redox non-innocent BIAN ligands acting as highly active electrocatalysts for proton reduction. The iron complexes have been investigated by cyclic voltammetry, electron paramagnetic resonance and U
A multi-step solvent-free mechanochemical route to indium(III) complexes
Wang, Jingyi,Ganguly, Rakesh,Yongxin, Li,Díaz, Jesus,Soo, Han Sen,García, Felipe
, p. 7941 - 7946 (2016)
Mechanochemistry is well-established in the solid-phase synthesis of inorganic materials but has rarely been employed for molecular syntheses. In recent years, there has been nascent interest in 'greener' synthetic methods with less solvent, higher yields, and shorter reaction times being especially appealing to the fine chemicals and inorganic catalyst industries. Herein, we demonstrate that main-group indium(iii) complexes featuring bis(imino)acenaphthene (BIAN) ligands are readily accessible through a mechanochemical milling approach. The synthetic methodology reported herein not only bypasses the use of large solvent quantities and transition metal reagents for ligand synthesis, but also reduces reaction times dramatically. These new main-group complexes exhibit the potential to be reduced to indium(i) compounds, which may be employed as photosensitizers in organic catalyses and functional materials.
Panchromic cationic iridium(III) complexes
Hasan, Kamrul,Zysman-Colman, Eli
, p. 12560 - 12564 (2012)
We report the synthesis, X-ray structures, and optoelectronic characterization of two cationic iridium complexes bearing bis[(4-methoxyphenyl) imino]acenaphthene ligands. These complexes exhibited panchromic absorption extending as far as 800 nm, making t
Potent half-sandwich Ru(Ⅱ) N^N (aryl-BIAN) complexes: Lysosome-mediated apoptosis, in vitro and in vivo anticancer activities
Xu, Zhishan,Huang, Jie,Kong, Deliang,Yang, Yuliang,Guo, Lihua,Jia, Xianglei,Zhong, Genshen,Liu, Zhe
, (2020/09/02)
Herein a new series of organometallic half-sandwich Ru(Ⅱ) complexes bearing aryl-BIAN chelating ligands with various electron-withdrawing and electron-donating substituents have been developed as theranostic agents. All the complexes display much higher anti-proliferative potency than the clinical chemotherapeutic drug cisplatin towards seven cancer cell lines. The anti-proliferative efficacy of these complexes is correlated to their electron-withdrawing ability. Interestingly, complex Ru1 also potently suppresses cancer cell migration in vitro and effectively inhibit tumor growth in vivo in a CT26 colon cancer mouse xenograft model. Mechanisms of action studies display that Ru1 can favorably accumulate in lysosome and exerts anti-cancer potency by inducing a series of events related to lysosomal dysfunction in CT26 cells. Interestingly, inhibition of lysosomal enzymes leads to suppression of cytotoxicity and apoptosis induced by Ru1. Our results elucidate that complex Ru1 can elicit cytotoxicity through lysosome-mediated apoptosis in vitro and suppress tumor growth in vivo.
Vanadium chlorides supported by BIAN (BIAN?=?bis(arylimo)-acenaphthene) ligands: Synthesis, characterization, and catalysis on ethylene polymerization
Xu, Shu-yun,Chen, Xue-meng,Huang, Li-cheng,Li, Feng,Gao, Wei
, p. 146 - 151 (2019/03/14)
Several vanadium chlorides bearing bis(arylimino)-acenaphthene (BIAN) ligands, (2,6-Me2C6H3-BIAN)V(THF)Cl3 (1), (2,6-Et2C6H3-BIAN)V(THF)Cl3 (2), (2,6-iPrsu
Novel yttrium and zirconium catalysts featuring reduced Ar-BIANH2 ligands for olefin hydroamination (Ar-BIANH2 = bis-arylaminoacenaphthylene)
Cimino, Alessandro,Moscatelli, Filippo,Ferretti, Francesco,Ragaini, Fabio,Germain, Stéphane,Hannedouche, Jér?me,Schulz, Emmanuelle,Luconi, Lapo,Rossin, Andrea,Giambastiani, Giuliano
supporting information, p. 10285 - 10293 (2016/12/07)
The novel class of bis-arylaminoacenaphthylenes (Ar-BIANH2) was employed for the preparation of zirconium and yttrium complexes to be used as catalysts for cyclohydroamination of a number of primary and secondary aminoalkenes. The complex [(2,6
Cationic platinum(II) complexes bearing aryl-BIAN ligands: Synthesis and structural and optoelectronic characterization
Obrien, Cameron,Wong, Michael Yin,Cordes, David B.,Slawin, Alexandra M. Z.,Zysman-Colman, Eli
, p. 13 - 22 (2015/01/30)
Five cationic platinum(II) complexes bearing a 2-(3′-substituted aryl)pyridine cyclometalating ligand (C^N) and a neutral Ar-BIAN ligand have been synthesized: [Pt(ppy)(PhBIAN)]PF6 (1), [Pt(3Fppy)(PhBIAN)]PF6 (2), [Pt(3MeOppy)(PhBIAN)]PF6 (3), [Pt(3MeOppy)(4-FPhBIAN)]PF6 (4), [Pt(ppy)(4-MeOPhBIAN)]PF6 (5). All complexes have been characterized by NMR spectroscopy and mass spectrometry. Complexes 2 and 3 have been characterized by X-ray crystallography. Structure-property relationships were established from UV-visible spectroscopy and cyclic voltammetry studies. Interestingly, we found that when both the C^N and the Aryl-BIAN ligands contained electron-donating MeO groups the absorption spectrum for the platinum complex extended out to 650 nm. The electrochemical studies of these complexes established that they are electronically compatible dye molecules for dye-sensitized solar cells.
Bis(aryl)acenaphthenequinonediimine substituent effect on the properties and coordination environment of ligands and their bis-chelate AgI complexes
Papanikolaou, Panagiotis A.,Gdaniec, Maria,Wicher, Barbara,Akrivos, Pericles D.,Tkachenko, Nikolai V.
, p. 5196 - 5205 (2013/10/22)
The reaction of a series of Ar-BIAN ligands (Ar = o-Ph, m-Cl, m-CF 3, p-Cl, p-MeO, and p-Me-C6H4) with AgNO 3 results in the formation of the corresponding bis-chelate complexes. Substituent groups on the aryl rings seem to offer tunability of the electronic properties of the diimines, also affecting the metal coordination environment through the mono-coordination or chelation of the nitrate anion as promoted by the substituents p-MeO, p-Me, and m-CF3. The enhanced absorption capacity of the complexes in the visible region in combination with the well-known redox activity of the ligands and their ability to potentially accommodate a fifth coordinated ligand on the metal center opens a route for the preparation of new silver species of high propensity for catalytic, photocatalytic, and biological applications. Six new AgI-bis(BIAN) complexes along with their ligands were synthesized and studied. Substituent groups offer tunability of the electronic properties and structural environment of the compounds. The versatility on the metal coordination sphere opens the way for the design of photoactive species with a variety of applications. Copyright
The use of sublimable chlorotricarbonyl bis(phenylimino)acenaphthene rhenium(I) complexes as photosensitizers in bulk-heterojunction photovoltaic devices
Mak, Chris S.K.,Wong, Hei Ling,Leung, Qing Yun,Tam, Wing Yan,Chan, Wai Kin,Djuri?i?, Aleksandra B.
experimental part, p. 2770 - 2776 (2009/12/06)
A series of sublimable substituted chlorotricarbonyl bis(phenylimino)acenaphthene rhenium(I) complexes was synthesized and used in the fabrication of photovoltaic devices. The hole and electron carrier mobilities of these complexes are in the order of 10-3 to 10-4 cm2 V-1 s-1. Heterojunction devices with CuPc/complex/C60 (CuPc = copper phthalocyanine) as the active layer and bulk heterojunction devices with complex:C60 as the active layer were fabricated. The rhenium complexes function as photosensitizer in the devices, and exhibit optical absorption in the region between 500 and 550 nm within which other components in the device do not absorb. Other devices with hole transport materials, exciton blocking materials, and different active layer thickness were also fabricated. Variation of substitution groups in the ligand did not show significant difference in device performance. The best power conversion efficiency of the devices was measured to be 1.29% under illumination of AM1.5 simulated solar light.
Method of establishing the Lewis acidity of a metal fragment based on the relative binding strengths of Ar-BIAN ligands (Ar-BIAN = bis(aryl)acenaphthenequinonediimine)
Gasperini, Michela,Ragaini, Fabio
, p. 995 - 1001 (2008/10/09)
The relative coordination strengths of a series of differently substituted Ar-BIAN ligands (Ar-BIAN = bis(aryl)acenaphthenequinonediimine) to a series of palladium complexes in both the formal 0 and 2 oxidation states have been determined. In all cases a good to excellent linearity of log Keq with respect to the Hammett σ constants of the substituents on the aryl fragments of the ligands was observed. The resulting ρ constant is proposed to be a good indication of the Lewis acidity of the metal fragment, a physical quantity for which experimental parameters have been determined only for a limited class of compounds. The obtained parameters allow a comparison not only of different olefin complexes among themselves but also with respect to different metal fragments such as Pd(OAc)2, Pd(Me)Cl, and a π-allyl complex. The Lewis acidity of the olefin complexes is extremely variable and ranges from the less acidic (Pd(Ar-BIAN)(DMFU); DMFU = dimethyl fumarate) to two of the most acidic (Pd(Ar-BIAN)(TCNE) and Pd(Ar-BIAN)(FN); TCNE = tetracyanoethylene, FN = fumarodinitrile) complexes among those examined. A cationic π-allyl complex has the highest Lewis acidity among the complexes examined. The importance of steric effects is examined in some cases.
