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P. P. Kushch S. V. Konovalikhin G. V. Shilov L. O. Atovmyan T. A. Khannanova R. N. Lyubovskaya 《Russian Chemical Bulletin》2000,49(2):372-374
The structure and conducting properties of a new radical cation salt of dibenzotetrathiafulvalene (DBTTF),viz., (DBTTF)11(TeCl6)4 (1), were studied. According to the X-ray diffraction data, the crystal of1 contains six crystallographically independent DBTTF radical cations alternating with stacks of the (TeCl6)2− anions. At room temperature, the conductivity of the crystals is 15 S cm−1 and it changes exponentially as the temperature decreases. It was found that an increase in the size of the anion in compounds
of type1 results in the appearance of interactions between the stacks and in an enhancement of the two-dimensional character of the
conductivity.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 370–372, February, 2000. 相似文献
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有机-无机自由基盐(DBTTF)6PMo12O40·2H2O的合成、性质和晶体结构 总被引:1,自引:0,他引:1
用电解法制备了有机-无机自由基盐(DBTTF)6PMo12O40·2H2O.用红外光谱、电子光谱和电子自旋共振谱进行了表征,测定了其磁化率、导电性和单晶的晶体结构,该晶体属三斜晶系,P1空间群,晶胞参数为a=1.378 7(7)nm,b=1.420 4(2)nm,c=1.570 2(2)nm,α=104.570(8)°,β=103.41(2)°,γ=95.80(2)°,V=2.853(2)nm3,Z=1,Dc=2.142 Mg·m-3,R=0.072 7. 相似文献
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The structure of Ir(CO)2(acac) is determined by XRD at room temperature. Crystallographic data for C7H7IrO4 are: a = 6.4798(5) ?, b = 7.7288(5) ?, c = 9.1629(10) ?, α = 105.738(2)°, β = 90.467(3)°, γ = 100.658(2)°, space group 1, P
, V= 433.24(6) ?3, Z = 2, d
calc = 2.662 g/cm3, R = 0.0167. The structure is built of isolated mononuclear molecules. The central iridium atom has a square coordination environment
formed by two oxygen atoms that belong to the acetylacetonate ligand and two carbon atoms of carbonyl groups. The average
Ir-O and Ir-C bond lengths are 2.045(3) ? and 1.832(6) ? respectively. Molecules are stacked in such a way that the planes
of coordination squares turn out to be parallel to the Ir...Ir distances between the nearest neighbors in the stack of 3.242
? and 3.260 ?.
Original Russian Text Copyright ? 2009 by K. V. Zherikova, N. V. Kuratieva, and N. B. Morozova
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Translated from Zhurnal Strukturnoi Khimii, Vol. 50, No. 3, pp. 595–597, May–June, 2009. 相似文献
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A new series of anhydrous mixed alkali-metal borophosphates-Li(2) Cs(2) B(2) P(4) O(15) (1), LiK(2) BP(2) O(8) (2), Li(3) K(2) BP(4) O(14) (3), and Li(3) Rb(2) BP(4) O(14) (4)-have been successfully synthesized by using the conventional solid-state reaction method. Compound 1 contains a novel fundamental building unit (FBU), [B(4) P(8) O(30) ], with B/P=1:2. Compound 2 contains an FBU of [B(2) P(4) O(16) ] with B/P=1:2. Compounds 3 and 4 are isotypic, and they have a [B(P(2) O(7) )(2) ] unit as their FBU. In all four compounds, their FBUs are connected through corner sharing to generate layered anionic partial structures, and then further linked with metallic polyhedra to form three-dimensional (3D) frameworks. Most interestingly, three of the four compounds contain direct P-O-P connections in their structures, which is extremely rare among borophosphates. Thermal analyses, IR spectroscopy, and UV/Vis/near-IR diffuse reflectance spectroscopy have also been performed on the four title compounds. 相似文献
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