ZfN: Search Results

1	Author	Sundara Ramaprabhu, EdwinA C Lücken	Requires cookie*
	Title	Cu and 79 81 Br NQR Studies of Thione Complexes of Cu(I) Halides
	Abstract	63, 65£ U NQR frequencies, together with their temperature dependence, are reported for several complexes formed between cuprous chloride or bromide and heterocyclic thiones. For bromides the 79,8fgr resonances have also been detected. These results indicate that, with one exception, the copper atom is tricoordinated by two sulphur atoms and one halogen. Several of these complexes show phase changes in the range 77-300 K.
	Reference	Z. Naturforsch. 47a, 125—128 (1992); received July 26 1991
	Published	1992
	Keywords	NQR, Copper(I), Thione
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	TEI-XML for	default:Reihe_A/47/ZNA-1992-47a-0125.pdf
	Identifier	ZNA-1992-47a-0125
	Volume	47

2	Author	Ya-Nan Zhao, Sundara Ramaprabhu, EdwinA C Lücken	Requires cookie*
	Title	An NQR Study of Inclusion Compounds Formed Between Small Chlorine-containing Molecules and Ä/s(N-alkylimidazolidine-2-thione)Cu(I) Halide Complexes
	Abstract	Twenty-five inclusion complexes formed by fe(N-alkyiimidazolidine-2-thione)cuprous halides with the small, chlorine-containing guest molecules CC1 4 , CHC1 3 , CH 2 C1 2 , CH 3 CC1 3 or C 2 H 2 C1 2 , have been prepared. Their 63 Cu and 35 C1 NQR spectra have been measured over the temperature range 77-300 K. For the corresponding bromides the 79 Br and/or 81 Br spectra have also been investigated. The studies reveal the number and symmetry of different inclusion site. The onset of rapid reorientation of the guest molecules is indicated by the fading out of their NQR signals between 77 and 300 K, whereas the resonances from the host molecules usually persist throughout this temperature range. However, as evidenced by discontinuities in the temperature-dependence of the NQR frequencies of the hosts, sixteen of the complexes show one or more phase-changes in this temperature-range.
	Reference	Z. Naturforsch. 51a, 677—685 (1996); received December 12 1995
	Published	1996
	Keywords	NQR, Copper(I), Guest, Inclusion, Complex
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	TEI-XML for	default:Reihe_A/51/ZNA-1996-51a-0677.pdf
	Identifier	ZNA-1996-51a-0677
	Volume	51

3	Author	Heinrich Homborg, Winfried Kalz	Requires cookie*
	Title	Darstellung von Phthalocyaninen von Ib-Elementen in aprotischen Lösungsmitteln Preparation of Phthalocyanines of lb-Elements in Aprotic Solvents
	Abstract	The double decomposition of (TDBA)LiPc(2-) with halocomplexes of the lb-elements is investigated in nonpolar aprotic solvents. Phthalocyanines of the formula MLiPc(2-) are isolated only for the univalent cations Cu(I) and Ag(I), but not for Au(I). The impure AgLiPc(2-) is light sensitive. In contrast to earlier observations only oxidation products of the phthalocyanine anion are obtained in the presence of Cu(II) and Au(III). The preparation of Ag(II) and Au(II) phthalocyanines failed. Abkürzungen: TBA+ = w-Tetrabutylammonium, [(C4H9)4N]+, TDBA+ = n-(Tridodecyl-butyl)ammonium, [(Cl2H25)3C4H9N]+, Pc(2-) = Phthalocyanin(2-), [C32HI6N8] 2 -, Pc(l-) = Phthalocyanin(l-),
	Reference	Z. Naturforsch. 33b, 1063—1066 (1978); eingegangen am 29. Juni/31. Juli 1978
	Published	1978
	Keywords	Phthalocyanine, Copper(I), Silver(I), UV-VIS, Vibrational Spectra
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-1063.pdf
	Identifier	ZNB-1978-33b-1063
	Volume	33

4	Author	JuliaA. Manskaya, VolodimirN. Kokozay, KonstantinV. Domasevitch	Requires cookie*
	Title	Crystal Structure of an Ammonium Dithiocyanatocuprate(I) Complex with 18-Crown-6, [NH4(18-Crown-6){Cu(NCS)2}] Obtained from Zero Valent Metal
	Abstract	The new macrocyclic dithiocyanatocuprate(I) complex [NH4(18-crown-6){Cu(NCS)2}] has been prepared using a direct method of interaction and characterized by X-ray crystallogra phy (orthorhombic, space group Cmc2i, with a = 12.453(2), b = 21.650(4), c = 8.151(2) A, V = 2197.6(8) Ä3, Z = 4 , 1 (F) = 0.054; wR2(F2) = 0.141 for 972 unique reflections with I > 2<r(I) and /?1(F) = 0.082; w/?2(F2) = 0.210 for all 1098 unique reflections). The lattice comprises complex cations [NH4(18-crown-6)]+ and infinite polymeric anions [Cu(NCS)2]-of a one-dimensional zig-zag structure. The copper atoms adopt three-fold coordination [CuN^S] (Cu-N 1,89(1), 1,90(1) A; Cu-S 2.278(4) A).
	Reference	Z. Naturforsch. 52b, 1311—1314 (1997); received
	Published	1997
	Keywords	18-Crown-6, Copper(I), Thiocyanate, Synthesis, X-Ray
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	TEI-XML for	default:Reihe_B/52/ZNB-1997-52b-1311.pdf
	Identifier	ZNB-1997-52b-1311
	Volume	52