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1.
(Cu(C14H11O3)(C10H8N2)2NO3.C2H5OH的合成,晶体结构和红外光谱 总被引:1,自引:0,他引:1
合成了(Cu(C14H11o3)(C10H8N2)NO3.C2H5OH化合物并测定其晶体结构,晶体属P空间群,a=1.1911(2)nm,b=1.5322(2)nm,c=1.0492(2)nm,a=108.98(1)°β=107.04(1)°,γ=70.25(1)°Z=2.在(Cu(C14H11O3)(C10H8N2)2)配合阳离子中,2个2.2’-联吡啶的4个氮原子和二苯羟乙酸的1个羟基氧原子位 相似文献
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用Nd(NO3)3.6H2O、Im(C3H4N2)、Phen(C12H8N2)和Cu(NO3)2.3H2O为原料,两步反应合成了标题化合物,该化合物晶体属P1空间群,晶胞参数a=1.0126(2)nm,b=1.1792(2)nm,c=1.3985nm,a=111.32(3)°,β=93.17(3)°,γ=90.33(3)°,Z=1,R=0.043,测定了化合物的UV-Vis-NIR及IR光谱和变温 相似文献
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合成了[Cu(C_(11)H_(11)O_3)(C(10)H_8N_2)_2]NO_3·C_2H_5OH化合物并测定其晶体结构。晶体属P1空间群,a=1.1911(2)nm,b=1.5322(2)nm,c=1.0492(2)nm,a=108.98(1)°,β=107.04(1)°,γ=70.25(1)°,Z=2.在[Cu(C_(11)H_(11)O_3)(C_(10)H_8N_2)_2] ̄+配合阳离子中,2个2,2’-联吡啶的4个氮原子和二苯羟乙酸的1个羧基氧原子位于铜原子周围,从而使铜原子子具有畸变的三角双锥配位构型。对红外光谱进行了归属。 相似文献
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具有不同类型桥基的双核Cu(Ⅱ)-Schiff碱配合物的合成和晶体结构 总被引:1,自引:0,他引:1
合成了3个分别以C2O2-4([Cu2(L1)2(ox)],1),AcO-([Cu2(AcO)(L2)2]BF4,2)和酚氧([Cu2(L3)2](ClO4)2,3)为桥基的双核铜配合物,并测定了1的复配合物[Cu2(L1)2(ox)]·[Fe(OH)2(H2O)4]ClO4·H2O(1′)及2和3的晶体结构.X射线衍射结果表明:1′,2和3分别属于Fddd,P21/c和P21/c空间群.晶胞参数:[Cu2(L1)2(ox)][Fe(OH)2(H2O)4]ClO4·H2O,a=2.4390(4)nm,b=3.0538(6)nm,c=1.8494(6)nm,α=β=γ=90.00°;2,a=0.847(1)nm,b=2.6542(8)nm,c=1.4100(6)nm,β=91.34(6)°;3,a=0.7646(3)nm,b=1.6983(3)nm,c=2.4417(3)nm,β=97.11° 相似文献
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合成了新型镧系四元混合阴离子配合物〔La(C6H5COO)2(NO3)(bipy)〕2, 化学经验式为C24H18N3O7La,Mr= 599.33,晶体属三斜晶系,P1 空间群,晶胞参数:a=11.020(4), b= 11.182(2), c= 10.285(3) , α= 102.83(2), β= 109.16(2), γ=82.23(3)°, Z= 1 , Dc= 1.709 g/cm 3, V= 1164.7(6) 3, μ(MoKα)= 18.77cm - 1, F(000)= 592.00 ;全矩阵最小二乘法修正至R= 0.023,Rw = 0.031,独立可观测衍射点数为3828 个。标题配合物是双核分子,中心离子配位数为9,配位多面体结构为单帽四方反棱柱,四个苯甲酸根呈双齿桥联和三齿桥联二种配位方式,且配合物中存在分子间芳环堆积作用。 相似文献
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测定了O,O(2,2'-联萘基)-N-(α-苯基乙基)膦酰胺RS体与乙醇形成的分子化合笺晶体结构。晶体学数据为:C28H22NO3P.C2H5OH,Mr=497.5,单斜晶系,P21空间群,a=9.359(2),b=12.806(3),c=11.641(A),β=111.62(3)°,z=2,v=1294,0(5)a^3,Dc=1.277g/cm^3,MoKa(λ=0.71073A)射线,μ=1. 相似文献
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合成了以4,4′-bpy为中继基、Gly-GlyO为螯环的新型双核铜配合物.经X射线单晶结构分析确定该配位化合物晶体的化学式为[(H2NCH2CONHCH2COO)Cu(OH)(C10H8N2)Cu(OH)-(H2NCH2CONHCH2COO)]·10H2O.晶体属三斜晶系,P1空间群,晶胞参数a=0.7124(2)nm,b=1.1405(10)nm,c=1.1434(10)nm,α=67.55°,β=79.02°,γ=77.97°,V=0.834(3)nm3,Z=1.最终一致性因子R为0.0727. 相似文献
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标题化合物由La(NO3)3·nH2O,1,10-邻菲罗啉(phen)和乙酰丙酮等在无水乙醇和水的混合溶剂中合成并用IR谱和X射线结构分析进行表征。晶体学数据如下:C24 H21LaN8O14,Mr= 784.40, 三斜, P1, a= 7.124(1), b= 11.047(2), c= 19.393(4), α= 81.10(3), β= 87.79(3), γ= 74.36(3)°, V= 1452.0(5)3, Z= 2, Dc=1.794g/cm 3, F(000)= 780, μ(MoKα)= 1.557m m - 1。化合物由阳离子〔phenH〕+ 和配合阴离子〔La(NO3)4(H2O)(phen)〕- 及一个结晶水分子组成。配合阴离子中以La原子为中心,周围被2 个N原子(来自phen)和9 个O原子(来自NO3- 和H2O)所占据,构成较为罕见的11 配位。晶胞中两两阳离子〔phenH〕+ 及两两配体phen 平面之间均相互平行堆积,并有多种类型的氢键存在,这些都可以降低能量,有利于化合物在晶体中的堆积。 相似文献
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稀土高氯酸盐开环冠醚三缩乙二醇(EO_3)[La(C_6H_(14)O_4)_3(H_2O)](ClO_4)_3·H_2O,单斜晶系,P2_1/c空间群。晶胞参数为:a=15.474(2),b=11.386(1),c=20.841(4),β=99.82(1)°,V=3618(1),MoKα,Z=4,D_c=1.718g/cm3,μ=1.499mm ̄(-1)。全矩阵最小二乘精细修正,结构因子R=0.056,R_w=0.083。中心原子La与开环冠醚醚链上的O(1)~O(9)及一个水分子形成10配位双帽四方反棱柱结构。弱配体高氯酸根不参加配位。 相似文献
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Mas-Ballesté R Capdevila M Champkin PA Clegg W Coxall RA Lledós A Mégret C González-Duarte P 《Inorganic chemistry》2002,41(12):3218-3229
The nucleophilicity of the [Pt(2)S(2)] core in [[Ph(2)P(CH(2))(n)PPh(2)]Pt(mu-S)(2)Pt[Ph(2)P(CH(2))(n)PPh(2)]] (n = 3, dppp (1); n = 2, dppe (2)) metalloligands toward the CH(2)Cl(2) solvent has been thoroughly studied. Complex 1, which has been obtained and characterized by X-ray diffraction, is structurally related to 2 and consists of dinuclear molecules with a hinged [Pt(2)S(2)] central ring. The reaction of 1 and 2 with CH(2)Cl(2) has been followed by means of (31)P, (1)H, and (13)C NMR, electrospray ionization mass spectrometry, and X-ray data. Although both reactions proceed at different rates, the first steps are common and lead to a mixture of the corresponding mononuclear complexes [Pt[Ph(2)P(CH(2))(n)PPh(2)](S(2)CH(2))], n = 3 (7), 2 (8), and [Pt[Ph(2)P(CH(2))(n)PPh(2)]Cl(2)], n = 3 (9), 2 (10). Theoretical calculations give support to the proposed pathway for the disintegration process of the [Pt(2)S(2)] ring. Only in the case of 1, the reaction proceeds further yielding [Pt(2)(dppp)(2)[mu-(SCH(2)SCH(2)S)-S,S']]Cl(2) (11). To confirm the sequence of the reactions leading from 1 and 2 to the final products 9 and 11 or 8 and 10, respectively, complexes 7, 8, and 11 have been synthesized and structurally characterized. Additional experiments have allowed elucidation of the reaction mechanism involved from 7 to 11, and thus, the origin of the CH(2) groups that participate in the expansion of the (SCH(2)S)(2-) ligand in 7 to afford the bridging (SCH(2)SCH(2)S)(2-) ligand in 11 has been established. The X-ray structure of 11 is totally unprecedented and consists of a hinged [(dppp)Pt(mu-S)(2)Pt(dppp)] core capped by a CH(2)SCH(2) fragment. 相似文献
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A zero-valent [M(Ph(2)PCH(2)CH(2)PPh(2))(2)] moiety (M = Mo, W) generated in situ by dissociation of the N(2) ligands in trans-[M(N(2))(2)(Ph(2)PCH(2)CH(2)PPh(2))(2)] can activate pi-accepting organic molecules including isocyanides and nitriles, which undergo the electrophilic attack caused by a strong pi-donation from a zero-valent metal center. Cleavage of a variety of C-X bonds (X = H, C, N, O, P, halogen) also occurs at their electron-rich sites through oxidative addition to form reactive intermediates, which subsequently degradate to yield smaller molecules either bound to or dissociated from the metal center. The mechanism is substantiated unambiguously by isolation of numerous intermediate stages. 相似文献
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The reaction of (R(2)PCH(2)SiMe(2))(2)NM (PNP(R)M; R = Cy; M = Li, Na, MgHal, Ag) with L(2)ReOX(3) [L(2) = (Ph(3)P)(2) or (Ph(3)PO)(Me(2)S); X = Cl, Br] gives (PNP(Cy))ReOX(2) as two isomers, mer,trans and mer,cis. These compounds undergo a double Si migration from N to O at 90 degrees C to form (POP(Cy))ReNX(2) as a mixture of mer,trans and fac,cis isomers. Additional thermolysis effects migration of CH(3) from Si to Re, along with compensating migration of halide from Re to Si. DFT calculations on various structural isomers support the greater thermodynamic stability of the POP/ReN isomer vs PNP/ReO and highlight the influence of the template effect on the reactivities of these species. 相似文献
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《Journal of organometallic chemistry》1986,311(3):339-347
The complexes cis-Mo(CO)2(Ph2P(CH2)nPPh2)2 (n = 1, 2, 3) are synthesized by heating benzene solutions of cis-dicarbonylbis(norbornadiene)molybdenum and the corresponding diphosphines. The X-ray structural analysis of cis-Mo(CO)2(Ph2P(CH2)3PPh2)2 is reported, with the following crystal data: C56H52MoO2P4·2CH2Cl2·0.5C6H14, mol wt. 1189.81, monoclinic, space group P21/n, a 15.643(2), b 21.453(7), c 17.105(3) Å, β 100.75(1)°, V 5639.59 Å3, Z = 4, Dc 1.39, Dm 1.36 g/cm3. 相似文献
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Rutkowski PX Rios D Gibson JK Van Stipdonk MJ 《Journal of the American Society for Mass Spectrometry》2011,22(11):2042-2048
Electrospray ionization of actinyl perchlorate solutions in H2O with 5% by volume of dimethylformamide (DMF) produced the isolatable gas-phase complexes, [AnVIO2(DMF)3(H2O)]2+ and [AnVIO2(DMF)4]2+, where An = U, Np, and Pu. Collision-induced dissociation confirmed the composition of the dipositive coordination complexes,
and produced doubly- and singly-charged fragment ions. The fragmentation products reveal differences in underlying chemistries
of uranyl, neptunyl, and plutonyl, including the lower stability of Np(VI) and Pu(VI) compared with U(VI). 相似文献
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1 INTRODUCTION The picolinic acid (picH), also called pyridine- 2-carboxylic acid, has a broad spectrum of physio- logical effects on the activity functions of both ani- mal and plant organisms. It is attributed increasing interest due to its ability to … 相似文献
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The new compounds K(2)TiCu(2)S(4), Rb(2)TiCu(2)S(4), Rb(2)TiAg(2)S(4), Cs(2)TiAg(2)S(4), and Cs(2)TiCu(2)Se(4) have been synthesized by the reactions of A(2)Q(3) (A = K, Rb, Cs; Q = S, Se) with Ti, M (M = Cu or Ag), and Q at 823 K. The compounds Rb(2)TiCu(2)S(4), Cs(2)TiAg(2)S(4), and Cs(2)TiCu(2)Se(4) are isostructural. They crystallize with two formula units in space group P4(2)/mcm of the tetragonal system in cells of dimensions a = 5.6046(4) A, c = 13.154(1) A for Rb(2)TiCu(2)S(4), a =6.024(1) A, c = 13.566(4) A for Cs(2)TiAg(2)S(4), and a =5.852(2) A, c =14.234(5) A for Cs(2)TiCu(2)Se(4) at 153 K. Their structure is closely related to that of Cs(2)ZrAg(2)Te(4) and comprises [TiM(2)Q(4)(2)(-)] layers, which are separated by alkali metal atoms. The [TiM(2)Q(4)(2)(-)] layer is anti-fluorite-like with both Ti and M atoms tetrahedrally coordinated to Q atoms. Tetrahedral coordination of Ti(4+) is rare in the solid state. On the basis of unit cell and space group determinations, the compounds K(2)TiCu(2)S(4) and Rb(2)TiAg(2)S(4) are isostructural with the above compounds. The band gaps of K(2)TiCu(2)S(4), Rb(2)TiCu(2)S(4), Rb(2)TiAg(2)S(4), and Cs(2)TiAg(2)S(4) are 2.04, 2.19, 2.33, and 2.44 eV, respectively, as derived from optical measurements. From band-structure calculations, the optical absorption for an A(2)TiM(2)Q(4) compound is assigned to a transition from an M d and Q p valence band (HOMO) to a Ti 3d conduction band. 相似文献
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The reaction of [AuCl(PR(3))] with [1,2-(Ph(2)P)(2)-1,2-C(2)B(10)H(10)] in refluxing ethanol proceeds with partial degradation (removal of a boron atom adjacent to carbon) of the closo species to give [Au{(PPh(2))(2)C(2)B(9)H(10)}(PR(3))] [PR(3) = PPh(3) (1), PPh(2)Me (2), PPh(2)(4-Me-C(6)H(4)) (3), P(4-Me-C(6)H(4))(3) (4), P(4-OMe-C(6)H(4))(3) (5)]. Similarly, the treatment of [Au(2)Cl(2)(&mgr;-P-P)] with [1,2-(Ph(2)P)(2)-1,2-C(2)B(10)H(10)] under the same conditions leads to the complexes [Au(2){(PPh(2))(2)C(2)B(9)H(10)}(2)(&mgr;-P-P)] [P-P = dppe = 1,2-bis(diphenylphosphino)ethane (6), dppp = 1,3-bis(diphenylphosphino)propane (7)], where the dppe or dppp ligands bridge two gold nido-diphosphine units. The reaction of 1 with NaH leads to removal of one proton, and further reaction with [Au(PPh(3))(tht)]ClO(4) gives the novel metallocarborane compound [Au(2){(PPh(2))(2)C(2)B(9)H(9)}(PPh(3))(2)] (8). The structure of complexes 1 and 7 have been established by X-ray diffraction. [Au{(PPh(2))(2)C(2)B(9)H(10)}(PPh(3))] (1) (dichloromethane solvate) crystallizes in the monoclinic space group P2(1)/c, with a = 17.326(3) ?, b = 20.688(3) ?, c = 13.442(2) ?, beta = 104.710(12) degrees, Z = 4, and T = -100 degrees C. [Au(2){(PPh(2))(2)C(2)B(9)H(10)}(2)(&mgr;-dppp)] (7) (acetone solvate) is triclinic, space group P&onemacr;, a = 13.432(3) ?, b = 18.888(3) ?, c = 20.021(3) ?, alpha = 78.56(2) degrees, beta = 72.02(2) degrees, gamma = 73.31(2) degrees, Z = 2, and T = -100 degrees C. In both complexes the gold atom exhibits trigonal planar geometry with the 7,8-bis(diphenylphosphino)-7,8-dicarba-nido-undecaborate(1-) acting as a chelating ligand. 相似文献