An ionicity diagram for the family of [{Ru2(CF3CO2)4}2(TCNQR(x))] (TCNQR(x) = R-substituted 7,7,8,8-tetracyano-p-quinodimethane).
نویسندگان
چکیده
A diagram of energies between the HOMO of donor (D) and LUMO of acceptor (A) vs.ΔE(1/2)(DA) (= E(1/2)(D) - E(1/2)(A): E(1/2) = first-redox potential) clearly demonstrates the ionicity in the series of D/A assemblies, [{Ru(2)(CF(3)CO(2))(4)}(2)(TCNQR(x))]·n(solv) (TCNQR(x) = 2,5- or 2,3,5,6-R-substituted 7,7,8,8-tetracyano-p-quinodimethane; R(x) = H(4), F(2), Cl(2), Br(2), F(4), Me(2), (OMe)(2)).
منابع مشابه
Modification of charge transfer in a two-dimensional donor/acceptor framework by the insertion of another donor-type molecule into electronegative interlayer pockets.
Pyrene-intercalated layered compounds, [{Ru2(O2CCF3)4}2(TCNQR(x))]·2(pyrene) (TCNQR(x) = 7,7,8,8-tetracyano-p-quinodimethane derivatives; R(x) = H4 and F4), were synthesized. Pyrene prohibits intralayer electron transfer of [Ru2(II,II)] → TCNQR(x), even in the compound with R(x) = F4, from occurring.
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The 4:1 complex salt formed between 7,7,8,8-tetracyano-p-quinodimethane (TCNQ) and the N,N'-di(n-propyl)-4,4 ' -bipyridinium dication (DPrBP) is monoclinic, space group P21 /c , with a = 1 3 . 3 3 4 ( l ) , b = 25.954(3), c = 7.877(1) A, 0 = 93.66(1)°. The structure was solved by the Patterson method and refined to R = 0.070 for 3277 unique reflections. The T C N Q moieties stack plane-to-plane...
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An array of TCNQ (TCNQ = 7,7,8,8-tetracyano-p-quinodimethane) lanthanide complexes, namely, [Ln2(TCNQ)4(H2O)10(EtOH)2][2TCNQ] x xH2O [Ln = La (1, x = 5), Pr (2, x = 3)], [Ln2(TCNQ)4(H2O)10][2TCNQ] x yH2O [Ln = Gd (3, y = 6), Dy (4, y = 5)] and [Ln(TCNQ)2(H2O)6][TCNQ] x H2O x MeOH [Ln = Er (5), Lu (6)], have been synthesized by salt-elimination reactions. X-ray crystallographic analysis indicate...
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Sublimation of alkali halides (NaCl and LiCl) onto a pre-assembled hydrogen-bonded layer of TCNQ on Au(111) resulted in the formation of 2D ionic layers via a direct charge-transfer reaction without involvement of the substrate. The presented approach allows for the fabrication of different ionic layers, decoupled from the substrate and offering new, potentially interesting properties.
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ورودعنوان ژورنال:
- Dalton transactions
دوره 41 20 شماره
صفحات -
تاریخ انتشار 2012