21907-47-1Relevant articles and documents
Synthesis, and crystal and molecular structures of the triflato and trifluoroacetato complexes of zinc, Zn(O3SCF3)2(DME)2 and [Zn(O2CCF3)2(DME)]n
Dell'Amico, Daniela Belli,Boschi, Daniele,Calderazzo, Fausto,Labella, Luca,Marchetti, Fabio
, p. 149 - 154 (2002)
Anhydrous Zn(O3SCF3)2 and Zn(O2CCX3)2, X=F, Cl, Br were obtained in substantially quantitative yields from ZnO (or ZnEt2 in the case of the bromide derivative) and a mixture of the corresponding acid and anhydride in heptane as medium. The reactions are rapid and moderately exothermic. Recrystallization of the triflate and trifluoroacetate complexes from dimethoxyethane (DME) produced single crystals of Zn(O3SCF3)2(DME)2 (1) and [Zn(O2CCF3)2(DME)]n (2) suitable for X-ray diffraction studies. In both compounds zinc is hexacoordinated with a pseudo-octahedral geometry. Compound 1 is constituted by mononuclear molecules with terminal monodentate O3SCF3 ligands in trans position. A polynuclear chain structure was found for 2 with zinc atoms joined alternatively by triple and single carboxylato bridges, and with bidentate terminal DME.
ORGANIC ELECTRONIC COMPONENT HAVING A CHARGE CARRIER GENERATION LAYER AND THE USE OF A ZINC COMPLEX AS A P-TYPE DOPANT IN CHARGE CARRIER GENERATION LAYERS
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Paragraph 0316-0317, (2018/10/19)
The invention relates to an organic electronic component (100) comprising at least one charge generation layer (5) which has an organically p-doped region (5a) that contains a zinc complex as a p-dopant, said zinc complex in turn containing at least one ligand L of the following structure: formula (I) wherein R1 and R2 can be oxygen, sulphur, selenium, NH or NR4 independently from one another, wherein R4 is selected from the group containing alkyl or aryl and which can be bonded to R3; and wherein R3 is selected from the group containing alkyl, long-chain alkyl, cycloalkyl, halogen alkyl, at least partially halogenated long-chain alkyl, halogen cycloalkyl, aryl, arylene, halogen aryl, heteroaryl, heteroarylene, heterocyclic alkylene, heterocycloalkyl, halogen heteroaryl, alkenyl, halogen alkenyl, alkynyl, halogen alkynyl, ketoaryl, halogen ketoaryl, ketoheteroaryl, ketoalkyl, halogen ketoalkyl, ketoalkenyl, halogen ketoalkenyl, halogen alkyl aryl, and halogen alkyl heteroaryl, wherein, for suitable groups, one or a number of non-adjacent CH2 groups can be replaced by —O—, —S—, —NH—, —NR°°°—, —SiR°R°°—, —CO—, —COO—, —COR°OR°°—, —OCO—, —OCO—O—, —SO2-, —S—CO—, —CO—S—, —O—CS—, —CS—O—, —CY1=CY2 or —C≡C— independently from one another, and in such a way that O and/or S atoms are not directly bonded to one another, and are replaced optionally with aryl- or heteroaryl preferably containing between 1 and 30 C atoms (terminal CH3 groups are understood to be CH2 groups in the sense of CH2-H). The invention further relates to the use of a zinc complex as a p-dopant in charge generation layers.
Series of dicyanamide-interlaced assembly of zinc-schiff-base complexes: Crystal structure and photophysical and thermal studies
Maiti, Monami,Sadhukhan, Dipali,Thakurta, Santarupa,Roy, Syamantak,Pilet, Guillaume,Butcher, Ray J.,Nonat, Aline,Charbonniere, Loic J.,Mitra, Samiran
, p. 12176 - 12187 (2013/01/15)
Four new dicyanamide (dca) bridged multinuclear ZnII-Schiff-base complexes, {[Zn2L1(μ1,5-dca)dca] ·CH3OH}2 (1), [Zn2L2(μ 1,5-dca)dca]n (2), [Zn3L3 2(μ1,5-dca)2]n (3), and [(ZnL4)2Zn(μ1,5-dca)dca]n (4), have been synthesized using four different Schiff bases L1H 2 = N,N/-bis(3-methoxysalicylidenimino)-1,3- diaminopentane, L2H2 = N,N'-bis(5-bromo-3- methoxysalicylidenimino)-1,3-diaminopropane, L3H2 = N,N'-bis(5-bromosalicylidenimino)-1,3-diaminopropane, and L4H 2 = N,N'-bis(5-chlorosalicylidenimino)-1,3-diaminopropane and NaN(CN)2 in order to extend the metal-ligand assembly. The directional properties of linear end-to-end bridging dca ligands have resulted in different metal ion connectivities leading to unique variety of templates in each of the complexes. All the ligands and complexes have been characterized by microanalytical and spectroscopic techniques. The structures of the complexes have been conclusively determined by single crystal X-ray diffraction studies. Thermogravimetric analyses have been performed to investigate the thermal stability of the metal-organic frameworks. Finally, the photoluminescence properties of the complexes as well as their respective ligands have been investigated with a comparative approach.
(II), Copper(II), and Nickel(II) Complexes of Bis(tripodal) Diamide Ligands - Reversible Switching of the Amide Coordination Mode upon Deprotonation
Hahn, F.Ekkehardt,Schroeder, Henning,Pape, Tania,Hupka, Florian
, p. 909 - 917 (2010/06/18)
A series of dinuclear Zn(II), Cu(II) and Ni(II) complexes of two new bis-tripodal ligands with aromatic (H2-4a) and aliphatic (H 2-4b) diamide spacers has been synthesized and structurally characterized. Each of the two tripodal entities of the neutral dinucleating ligands coordinates to one metal ion via three amine functions and a carbonyl oxygen atom of the amide groups. Either trifluoroacetate counterions or solvent molecules complete the trigonal-bipyramidal (Zn, Sa), square-pyramidal (Cu, 6a and 6b), and octahedral (Ni, 7a and 7b) coordination environment at the metal centers. Complexes 5a, 6a, and 7a with the phenylene-bridged diamide ligand are readily deprotonated by potassium tert-butoxide effecting a rearrangement of the dinuclear complexes. In the resulting zinc and copper complexes 8 and 9, one of the metal centers is coordinated by three amine functions of a tripodal subunit and the two amidate nitrogen atoms of the deprotonated ligand 4a2- while the coordination geometry of the second metal atom remains unchanged. The analogous nickel compound crystallizes as neutral tetranuclear complex (10) 2 with intermolecular coordination of two amide carbonyl oxygen atoms to the nickel atoms of an adjacent dinuclear complex. The resulting coordination mode with binding of all four donor functions of the diamide spacer to three discrete metal centers is to date unprecedented for ortho-phenylene-bridged acetamides. The rearrangement upon deprotonation has been shown to be fully reversible and the starting complexes can be retrieved upon protonation of the two amidate functions. Synthesis of the trinuclear zinc complex 11 with coordination of the two amidate nitrogen atoms to a third metal center was achieved via deprotonation of (H6-4a)-(CF 3CO2)4 by three equivalents of diethylzinc. In protic solvents 11 rapidly rearranges to give the entropically favored dinuclear complex 8 with elimination of one equivalent of zinc trifluoroacetate.