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Bromine NMR Study of Cupric Compounds (CnH2n+1NH3)2CuBr4 (n=1, 2) The spin structure of (C n H 2 n +1 NH 3 ) 2 CuBr 4 ( n =1, 2) is studied by Br NMR at 1.7 K. In (C 2 H 5 NH 3 ) 2 CuBr 4 , the magnetic space group is P b ' c ' a type and the mo...
To understand why the (Cu(NH3)4)2+ ion is colored while the (Cu(CN)4)3− ion is colorless, we need to analyze the electronic configurations and the presence of unpaired electrons in these complexes. 1. Identify the oxidation states of copper in both complexes: - In (Cu(NH3)4)2+,...
According to the actual pH of AMD, the effects of different pH (2–4) on the adsorption process of Cu2+, Zn2+and Pb2+by lignite and MML were studied as shown in Fig.1a,b. With the increase of pH value, the adsorption of Cu2+, Zn2+and Pb2+by lignite and MML gradually increas...
Discusses a study which examined the remanent magnetic moment in the linear chain antiferromagnet (Ch[sub3]Nh[sub3])Mn[sub1-x]M[subx]Cl[sub3]•2H[sub2]O, M=cadmium or copper. Temperature dependence of magnetization; Magnetization behavior of antiferromagnets; Results and conclusions.被引量...
and lattice energy of the hybrid organic–inorganic perovskite [NH3(CH2)4NH3]CoCl4. RegardingM = Cu, investigations into the structure, magnetic, and optical properties of the layer-type [NH3(CH2)nNH3]CuCl4(n = 2, 3, 4, and 5) were conducted23,25,64,74,75,76,77,78,79....
The [(H3N(CH2)6NH3)]2+ cations are accommodated between the chains as counter cations. The hexane-1,6-diammonium cations adopt a partial synclinal conformation. The chains are connected by strong and weak hydrogen bonds. Magnetic measurements reveal a paramagnetic Curie-Weiss behavior and a ...
Also, the magnetic moment values in the range 1.22–1.45 BM for the copper (II) complexes 25–30 are of indicative anti-ferromagnetic spin-spin interaction through molecular association [40]. Complex 31 is diamagnetic and the central Ni2+ ion is in a square planar environment [40]. 2.1.4...
The following factors are considered; 63Cu:65Cu = 69.09:30.91; nuclear magnetic moment βn = 2.2206 (63Cu) and 2.3790 (65Cu); 14N (I = 1, 99.635%). In the meantime, 33S (I = 3/2, 0.74%), 13S (I = 1/2, 1.108%) and 15N (I = 1/2, 0.365%) are ignored. Next, we ...
3.2. Electronic Spectra, and Magnetic Susceptibility Studies 3.2.1. Manganese(II) Complex The molar conductance measurements showed that the Mn(II) complex is a non- electrolyte. Thus, it is formulated as [Mn(Gpn)(H2O)3(Cl)] 4H2O. It showed a magnetic moment corresponding to five unpaired...