Beiträge zur Chemie des Schwefelkohlenstoffs und Selenkohlenstoffs, II. Die Kondensierende Spontan‐Entschwefelung von Salzen und Estern der Cyan‐Dithioameisensäure. Freie Cyan‐Dithioameisensäure

2012) Prolonging luminescent lifetimes by introducing bis(maleonitriledithiolato)metalate anions with a fluorescent organic cation, Journal of Coordination Chemistry, 65:1, 87-103, A new organic fluorescent ionic compound [MOBIP]I (1) (MOBIP þ ¼ 1-methyl-2-oxo-3 -(1H-benzimidazol-2(3H)-ylidene)-2,3-dihydropyridinium) was synthesized and used to prepare seven maleonitriledithiolate metal complexes [MOBIP] n [M(mnt) 2 ] by substitution of the iodide ion with [M(mnt) 2 ] nÀ (M ¼ Cu 2þ (2), Ni 2þ (3a), Ni 3þ (3b), Zn 2þ (4), Cd 2þ (5), Pd 2þ (6), and Pt 2þ (7)). An investigation of fluorescence properties shows that these complexes are a new series of solution luminescent complexes of maleonitriledithiolate derivatives with strong blue light fluorescence in daylight by irradiation with UV light with high quantum yields. They display similar symmetric emissions with em at the deep blue region of $426 nm upon excitation at $364 nm in DMF, caused by L-L transition of MOBIP þ . Existence of [M(mnt) 2 ] nÀ anions in the solution prolongs the fluorescent lifetimes. For all these compounds in the solid state, the fluorescent emission is blue-shifted and more narrow than that in solution. Based on their crystal structure analysis, the weak stacking interactions in compounds cause the difference of their fluorescence spectrum. Investigations of variable-temperature magnetic susceptibility indicate that 2 has weak antiferromagnetic coupling, while 3b exhibits stronger antiferromagnetic coupling.

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“…The sodium salts of the ligand, cis-maleonitriledithiolate (Na 2 mnt), were prepared according to the published method [23].…”

Section: Chemicals and Reagentsmentioning

confidence: 99%

Prolonging luminescent lifetimes by introducing bis(maleonitriledithiolato)metalate anions with a fluorescent organic cation

Wang

Chen

Liu

et al. 2011

Journal of Coordination Chemistry

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“…As far as we are aware, these particular compoi~nds do not appear to have been reported previously. Compoilnds RSC(CN)==C(CN)SR are known where R is aliphatic (20).…”

mentioning

confidence: 99%

Ligand Abstraction in the Reaction of Aryldiazonium Ions with some Iron Complexes Containing Coordinated Cysteine, Maleonitriledithiol, or Triarylphosphine

Carroll¹,

Fisher²,

Canham³

et al. 1974

Can. J. Chem.

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The reactions of selected aryldiazonium tetrafluoroborates with Fe(CO)3(PR3)2, [Fe(mnt)2]−, [Fe(cystH)2]2+, and [Fe(CO)2(cyst)2] (mnt = S2C2(CN)2, cyst = SCH2CH(NH2)CO2H ) result in abstraction of the ligand to yield arenediazophosphonium ions, S-(arenediazo)cysteine or the dinitrogen extrusion product ArS(CN)C=C(CN)SAr. Arylazo complexes of iron were not obtained. The products have been characterized and compounds related to S-(arenediazo)cysteine, namely S-(arenediazo)triphenylmethyl mercaptan and S-(arenediazo)sulfones, have been synthesized for a detailed comparison of their Raman spectra. Assignments of ν(N=N) are made on the basis of 15N- and 2H-substitution experiments. The possible involvement of nucleophilic sulfur as a site for the activation and or reduction of complexed dinitrogen in biological nitrogen fixation is proposed.

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“…The intermediate 2,3-dicyano-5-propyl-bromine-1,4-dithiin 5 was prepared according to the literature procedure [17]. 1 H NMR spectrum of 5 showed the expected signals such as -S-CH, -S-CH 2 -, -Br-CH 2 -, -CH 2 -protons at d = 4.19, 3.36, 3.2 and 1.95 ppm, respectively.…”

Section: Metalloporphyrazines (Mpzs) With An Extended Delocalized 18mentioning

confidence: 99%

“…The intermediate 2,3-dicyano-5-propyl-bromine-1,4-dithiin 5 was prepared according to the literature procedure [17]. 1 Porphyrazinatomagnesium 6 was obtained by the template reaction [18] of compound 5 with magnesium butoxide in dry nbutanol under nitrogen at reflux temperature.…”

mentioning

confidence: 99%

Synthesis and properties of iron(II) tetra(1,4-dithiin)porphyrazine bearing peripheral long-chain alkyl group of active end-bromine

Tang

Chen

Sun

et al. 2010

Inorganic Chemistry Communications

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Beiträge zur Chemie des Schwefelkohlenstoffs und Selenkohlenstoffs, II. Die Kondensierende Spontan‐Entschwefelung von Salzen und Estern der Cyan‐Dithioameisensäure. Freie Cyan‐Dithioameisensäure

Cited by 161 publications

References 2 publications

Prolonging luminescent lifetimes by introducing bis(maleonitriledithiolato)metalate anions with a fluorescent organic cation

Prolonging luminescent lifetimes by introducing bis(maleonitriledithiolato)metalate anions with a fluorescent organic cation

Ligand Abstraction in the Reaction of Aryldiazonium Ions with some Iron Complexes Containing Coordinated Cysteine, Maleonitriledithiol, or Triarylphosphine

Synthesis and properties of iron(II) tetra(1,4-dithiin)porphyrazine bearing peripheral long-chain alkyl group of active end-bromine

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