1. How many unpaired electrons are present in the ground state of the atoms in Group 4A(14)? 2. How many unpaired electrons are present in the ground state of the atoms in Group 7A(17)? How many unpaired electrons are present in the ground state of O atom? A ground s...
关键词: NiL^1]~3[Cr(CN)~6]~2 · 18H~2O [L^1 = 3,10-bis(2-hydroxyethyl)-1,3,5,8,10,12-hexaazacyclotetradecane a two-dimensional bimetallic assembly exhibiting antiferro-magnetic ordering and metamagnetic behavior, Artículo DOI: 10.1039/b101778k 被引量: 28 ...
Magnetization measurements performed on Prussian blue analogs TM2+3[CrIII(CN)6]2·n H2O (TM = Cr, Mn, Fe, Co, Ni, Cu) confirmed the dual character of the exchange interaction (antiferromagnetic AFM and ferromagnetic FM) in this system. AFM interaction dominates for the Cr2+ sample and ...
答案:[Fe (CN)6]3-是顺磁性的,因为有一个成单电子;(2分) [Cr(H 20)6]2+ (△ < P)是顺磁性的,因为弱场高自旋,有四个成单电子; (1分) [Co(NH3)6]3+ (△ > P)是反磁性的,因为强场低自旋,没有成单电子; (1分) 2+ [Mn (H 20)6] (△ < P)是顺磁性的,因为有五个成单电子...
Complexation of trinuclear oxo-centered carboxylates with a silicododecatungstate resulted in the formation of ionic crystals of [M(3)O(OOCC(6)H(5))(6)(H(2)O)(3)](4)[α-SiW(12)O(40)]·nH(2)O·mCH(3)COCH(3) [M = Cr (Ia), Fe (IIa)]. Treatments of Ia and IIa at 37...
Therefore, the unpaired electrons in 3d channels are predominantly responsible for interacting with spin-polarized molecules. For O2 molecule, which is triplet in its ground state (S = 3), when interacting with the CrPc (S = 5) and FePc (S = 3) sheets, the adsorption process leads the ...
ChemInform Abstract: Excited State Relaxation in Cr(CN)6-n(H2O)n)n-3 Complexes (emission spectra and excited state decay rates for the title Complexes with n: 0-6).doi:10.1002/chin.198643041luminescence, fluorescence (organic substances)A. GHAITH...
反应条件对CoFe2O4颗粒形貌、粒径大小和磁性的影响 以FeSO4(NH4)2SO4,6H2O,CoCl2·6H2O,C6H5Na3O7·2H2O为前驱物,采用水热法合成了钴铁氧体CoFe2O4.用XRD,TEM,VSM分别测试了CoFe2O4颗粒大小,形貌,饱和磁化强度和矫顽力,... 吴娟,霍德璇,金尧,... - 《纳米科技》 被引量: 1发表: 2008年 Recovery...
An ionic crystal of Cs2[Cr3O(OOCC2H5)6(H2O)3]2[α-SiW12O40]·4H2O 1a with hydrophilic and hydrophobic channels has been designed and successfully synthesized. The guest-free phase 1b sorbs dichloromethane and water in the hydrophobic and hydrophilic channels, respectively. The rate and equil...
The synthesis, X-ray structure and variable-temperature magnetic study of new compounds of formula PPh4[Cr(dmbipy)(ox)2]·5H2O (1), AsPh4[Cr(dmbipy)(ox)2]·5H2O (2), {Ba(H2O)2[Cr(dmbipy)(ox)2]2}n·17/2nH2O (3) and {Ag(H2O)[Cr(dmbipy)(ox)... Marta Viciano-Chumilla...