- Photooxidation of Bisnickel(O)-tetrabutylamine with α-Tocopherol
-
The photooxidation of a nickel dithiolate complex by α-tocopherol was found for the development of a recording medium which can be used to read by a laser diode.The mechanism was analyzed.As a result, it was found that α-tocopherol produced oxygen adducts
- Emmanji, Koe
-
-
Read Online
- Ni(ii) dithiolate anion composites with two-dimensional materials for electrochemical oxygen evolution reactions (OERs)
-
In this report, the composites of anionic complex [NEt4][Ni(S2C2Ph2)2] with two-dimensional materials such as graphene oxide (GO), reduced graphene oxide (rGO) or graphitic carbon nitride (g-C3N4) have been prepared by a simple sonochemical technique and utilized for the oxygen evolution half-cell reaction of water splitting. The synthesized complex anion has been characterized spectroscopically and by single-crystal X-ray diffraction, while its composites with GO, rGO and g-C3N4have been characterized using physicochemical characterization techniques,viz.powder X-ray diffraction and scanning electron microscopy. Electrochemical measurements were performed on a three-electrode system having a platinum wire counter electrode, a Ag/AgCl reference electrode and a catalytically modified glassy carbon electrode using linear sweep voltammetry, cyclic voltammetry and electrochemical impedance spectroscopy. The electrochemical studies suggest that the [Ni(S2C2Ph2)2]-rGO modified electrode had notable electrocatalytic activity for the oxygen evolution reaction (OER). The fabricated electrode exhibited acceptable repeatability, reproducibility and stability. To the best of our knowledge, there are only a few reports on detailed studies of composites of 2D materials with a nickel-based molecular complex, exhibiting substantial synergistic activity towards electrochemical water splitting.
- Kociok-K?hn, Gabriele,Kumar, Abhinav,Molloy, Kieran C.,Muddassir, Mohd.,Singh, Amita,Singh, Ashish Kumar,Singh, Ayushi
-
supporting information
p. 16264 - 16270
(2021/09/22)
-
- Heteroleptic bis(cis -1,2-disubstituted ethylene-1,2-dithiolato)nickel complexes obtained by ligand-exchange reaction: Synthesis and properties
-
The ligand-exchange reaction has been investigated to synthesize nickel bis(dithiolene) complexes bearing one hydroxyl functional group aimed at being grafted thereafter onto polymer materials. This reaction leads easily to heteroleptic complexes with the ethylene-1,2-dithiolato core substituted by either alkyl or aryl moieties. Details on synthetic parameters are given. A direct link between the electronic properties of the obtained molecules and those of the parent complexes involved in the ligand-exchange reaction is highlighted and also demonstrates that this reaction is a powerful method for preparing nickel complexes with tailor-made frontier orbital energies.
- Vuong, Thi Minh Ha,Bui, Thanh-Tuan,Sournia-Saquet, Alix,Moreau, Alain,Ching, Kathleen I. Moineau-Chane
-
supporting information
p. 2841 - 2847
(2014/04/03)
-
- Syntheses and characterization of several nickel bis(dithiolene) complexes with strong and broad Near-IR absorption
-
Several nickel bis(dithiolene) complexes with strong and broad absorptions in the Near-IR (NIR) region (700-1100 nm) were synthesized by using green and simple synthetic routes. The physical and chemical properties of these dyes were systematically studied, including structure, optical spectroscopy and electrochemical behavior, etc. These NIR dyes were first applied to dye-sensitized solar cells (DSCs) and the photoelectrochemical performances were also investigated. The effects of different substituent groups on the properties of the dyes and photovoltaic performances of DSCs were discussed. Furthermore, we also applied the synthesized NIR dyes for constructing NIR absorbing filter. With their particular photoelectrochemical properties, the nickel bis(dithiolene) complexes exhibit promising prospects for future application.
- Miao, Qingqing,Gao, Junxiong,Wang, Zeqing,Yu, Hang,Luo, Yi,Ma, Tingli
-
p. 619 - 627
(2011/11/01)
-
- A bioorthogonal quadricyclane ligation
-
New additions to the bioorthogonal chemistry compendium can advance biological research by enabling multiplexed analysis of biomolecules in complex systems. Here we introduce the quadricyclane ligation, a new bioorthogonal reaction between the highly strained hydrocarbon quadricyclane and Ni bis(dithiolene) reagents. This reaction has a second-order rate constant of 0.25 M-1 s-1, on par with fast bioorthogonal reactions of azides, and proceeds readily in aqueous environments. Ni bis(dithiolene) probes selectively labeled quadricyclane-modified bovine serum albumin, even in the presence of cell lysate. We have demonstrated that the quadricyclane ligation is compatible with, and orthogonal to, strain-promoted azide-alkyne cycloaddition and oxime ligation chemistries by performing all three reactions in one pot on differentially functionalized protein substrates. The quadricyclane ligation joins a small but growing list of tools for the selective covalent modification of biomolecules.
- Sletten, Ellen M.,Bertozzi, Carolyn R.
-
p. 17570 - 17573
(2012/01/04)
-
- Synthesis, characterization, spectroscopy, electronic and redox properties of a new nickel dithiolene system
-
A new dithiolene ligand with 3,5-dibromo substituted phenyl groups was designed and synthesized. The protected form of the ligand was reacted with a nickel salt providing neutral Ni(S2C2(3,5-C 6H3Br2)2)2 and anionic [Ni(S2C2(3,5-C6H3Br 2)2)2]- isolated as a Bu 4N+ salt. Both were characterized by UV-Vis and IR spectroscopy and compared with the similar known molecular systems. They exhibit intense low energy transitions that are characteristic of such systems. The electrochemical behavior of these molecules was investigated by cyclic voltammetry.
- Basu, Partha,Nigam, Archana,Mogesa, Benjamin,Denti, Suzanne,Nemykin, Victor N.
-
p. 2857 - 2864
(2011/02/28)
-
- Some new nickel 1,2-dichalcogenolene complexes as single-component semiconductors
-
The complexes Ni(dmeds)(dmit), Ni(dmedt)(dmit), Ni(dpedt)(dsit), Ni(dpedt)(dmit), and Ni(dcdt)(dmit) (where dmeds is dimethylethylenediselenolate, dmedt is dimethylethylenedithiolate, dpedt is diphenylethylenedithiolate, dcdt is 1,2-bis-decylsulfanyl-ethe
- Papavassiliou, George C.,Anyfantis, George C.,Steele, Barry R.,Terzis, Aris,Raptopoulou, Catherine P.,Tatakis, George,Chaidogiannos, George,Glezos, Nikos,Weng, Yufeng,Yoshino, Harukazu,Murata, Keizo
-
p. 679 - 684
(2008/09/21)
-
- Photoselective 1:1 Adduct between bis(1,2-diphenyl-1,2-ethylenedithiolato)nickel(0) and Quardocylane
-
Bis(1,2-diphenyl-1,2-ethylenedithiolato)nickel(0) (1a) reacts with quardocyclane (Q) to give 1:1 adduct which has the same structure as that of the adduct between 1a and norbornadiene (NBQ).Q reacts with 1a much faster then NBD.The adduct is thermally stable but photoselective to dissociate into 1a and NBD.
- Kajitani, Masatsugu,Kohara, Midori,Kitayama, Tomoko,Asano, Yoshihiko,Sugimori, Akira
-
p. 2109 - 2112
(2007/10/02)
-