共查询到20条相似文献，搜索用时 0 毫秒
1.
Reaction of [{Cp(CO)3Mo}2SbCl] with S8 or Se8 leads to the formation of cluster compounds [{Cp(CO)2Mo}2ESbCl] (E = S, Se). [{Cp(CO)2Mo}2SSbCl] crystallizes monoclinic, space group P21/n with a = 812.28(3), b = 855.65(4), c = 2441.01(9) pm and β = 90.149(3)°; [{Cp(CO)2Mo}2SeSbCl] · CH2Cl2 crystallizes triclinic, space group P$bar{1}$ with a = 828.82(9), b = 1002.8(1), c = 1340.0(2) and α = 109.24(1), β = 100.87(1), γ = 96.81(1)°. For both compounds X‐ray crystal structure analysis reveals tetrahedral Mo2SbE cluster cores with Sb–E bond lengths of 256.8(1) pm (E = S) and 265.3(1) (E = Se). According to the 18 electron rule the [{Cp(CO)2Mo}2ESbCl] clusters can be regarded as complexes of the 4 electron donator ESbCl that is coordinated “side‐on” to a {Cp(CO)2Mo}2 fragment. 相似文献
2.
The reactions of LnCl3·6H2O (Ln=Eu or Dy) and Na2[Mo2O3S(HNTA)2]·6H2O afford Na[Mo2O3S(HNTA)2]2·Eu(H2O)9·3H2O (1) (NTA=nitrilotriacetate) and Na{(H2O)6Dy[Mo2O3S(HNTA)2]2}·7.5H2O (2), respectively. The [Mo2O3S(HNTA)2]2− cluster units of 1 are interconnected by Na+ into a 3-D open framework with rutile topology templated by . The coordination of [Mo2O3S(HNTA)2]2− to the slightly smaller Dy3+ ion of greater ionic potential as a consequence of lanthanide contraction has been observed to form the pentanuclear heterometallic {Dy(H2O)6[Mo2O3S(HNTA)2]2}−, which is linked by Na+ and hydrogen bonds between the protonated carboxylate groups into a 3-D supramolecular framework. The weak antiferromagnetic interactions between the Dy3+ ions of 2 have been observed. 相似文献
3.
Konstantin A. Brylev Nikolay G. Naumov Alexander V. Virovets Sung-Jin Kim Vladimir E. Fedorov 《Journal of Cluster Science》2009,20(1):165-176
Three novel coordination polymers K5[MnMo6Se8(CN)6] · 8H2O (1), (Me4N)4[{Mn(H2O)2}1.5Mo6Se8(CN)6] · 4H2O (2), and K3[{Mn2(H2O)4}Mo6Se8(CN)6] · 7H2O (3) have been synthesized by layering of a methanol solution of [Mn(salen)]CH3COO (salen–N,N′-bis(salicylidene)ethylenediamine) on an aqueous solution of K7[Mo6Se8(CN)6] · 8H2O. The compounds have been characterized by single-crystal X-ray diffraction analysis. All structures are based on negatively
charged porous polymer frameworks where CN groups of [Mo6Se8(CN)6]7− cluster complexes are coordinated to Mn2+ cations. Cavities in the frameworks are filled by additional cations and solvate water molecules. 相似文献
4.
Matthias Stender Hannes Oesen Steffen Blaurock Evamarie Hey‐Hawkins 《无机化学与普通化学杂志》2001,627(5):980-984
Synthesis and Molecular Structure of [{Cp′(μ‐η1 : η5‐C5H3Me)Mo(μ‐AlRH)}2] (Cp′ = C5H4Me, R = iBu, Et) [Cp′2MoH2] reacts with HAlR2 to give [{Cp′(μ‐η1 : η5‐C5H3Me)Mo(μ‐AlRH)}2] (Cp′ = C5H4Me, R = iBu ( 1 ), Et ( 2 )). Crystal structure determinations were carried out on [Cp′2MoH2] and 1 . 1 exhibits a direct Mo–Al bond (2.636(2) Å). 相似文献
5.
Rb{Pr6(C)2}I12 was obtained from a mixture of RbI, PrI3, Pr and C as black single crystals at elevated temperatures. The black crystals are triclinic, (no. 2), a = 960.1(2), b = 957.0(2), c = 1003.4(2) pm, α = 71.74(2), β = 70.69(2), γ = 72.38(2)°, V = 805.6(3) 106 pm3, Z = 1; R1 = 0.0868 for all 2749 measured independent reflections. Rb{Pr6(C)2}I12 contains {Pr6(C2)} clusters isolated from each other, surrounded by twelve edge‐bridging and six terminal ligands. The [{Pr6(C)2}Ii12Ia6]? units are connected via i‐a/a‐i bridges according to {Pr6C2}Ii6/1Ii‐a6/2Ia‐i6/2 with rubidium ions occupying twelve‐coordinate interstices. 相似文献
6.
The reaction of platinum(II) chloride with 1,2,4‐trichlorobenzene gives the novel platinum complex Pt6Cl12·(1,2,4‐C6H3Cl3). It is the first example of an cocrystallization product of platinum(II) chloride and organic molecules whose crystal structure has been established. 相似文献
7.
Investigations of Sb–Sb Bond Formation Reactions in the Coordination Sphere of Transition Metals The reaction of SbCl3 with various transition metal metalates of the type K[MLn] [MLn = Ni(CO)Cp*, Fe(CO)Cp′, Co(CO)4; Cp* = η5‐C5Me5, Cp′ = η5‐C5H4Me] in the presence of [Cr(CO)5thf] have been studied. With K[Ni(CO)Cp*] and K[Fe(CO)2Cp′] the trigonal‐pyramidal complexes [(μ3‐Sb){Ni(CO)Cp*}3] ( 1 ) and [(μ3‐Sb){Fe · (CO)2Cp′}3] ( 2 ), respectively, are obtained. The reaction with K[Co(CO)4] leads to the tetrahedral cluster [Co3(CO)9(μ3‐Sb{Cr(CO)5})] ( 3 ) and the butterfly cluster [Co2(CO)6(μ‐SbCl)(μ‐SbCl{Cr(CO)5})] ( 4 ). All products are characterised by X‐ray crystal structure determination. In contrast to the corresponding [(CO)5CrPCl3] system forming P–P bonds, starting from SbCl3/[Cr(CO)5thf] does not cause a Sb–Sb bond formation. 相似文献
8.
张 《高等学校化学学报》1999,20(9):1329-1333
利用苯乙炔或丙炔醇与[Mo(CO)2(η5-C5H4R1)]2[R1＝C(O)Me,C(O)OEt,C(O)Ph]的反应合成了6个新的炔烃配位的双钼化合物[Mo(CO)2(η5-C5H4R1)]2(μ-η2,η2-(CH=CR2)[R1＝C(O)Me,R2＝Ph,1;R1＝C(O)OEt,R2＝Ph,2;R1＝C(O)Ph,R2＝Ph,3;R1＝C(O)Me,R2＝CH2OH,4;R1＝C(O)OEt,R2＝CH2OH,5;R1＝C(O)Ph,R2＝CH2OH,6],并对这些化合物进行了C/H元素分析,IR,1HNMR等表征.晶体X射线衍射分析结果表明,化合物1属单斜晶系,P21(＃4)空间群,晶胞参数a＝0.7671(2)um,b＝0.8365(2)nm,c＝1.8308(3)nm,β＝98.34(1)°,V＝1.1623(5)um3,Z＝2,Dc＝1.772g·cm-3,F(000)＝616,R＝0.041,Rw＝0.045. 相似文献
9.
《Journal of Coordination Chemistry》2012,65(16):1449-1454
A new zinc diphosphonate [NH3CH(CH3)CH2NH3]2Zn2(edbbp)2(HNO3)2·4H2O [eddbp?= O3PCH(Ph)NH(CH2)2NHCH(Ph)PO3] was hydrothermally synthesized with Zn(NO3)2·6H2O, ethane-1,2-diamino-N,N′-bis(benzylphosphonic acid) (H4edbbp) and 1,2-propyldiamine. It consists of a centro-symmetric dimeric unit [Zn2(edbbp)2], in which each zinc ion adopts a distorted square-pyramidal coordination geometry. Hydrogen bonds formed between phosphonate groups and protonated 1,2-propyldiamine molecules link the dimeric units into one-dimensional chains. The doubly protonated 1,2-propyldiamine molecules serve not only as charge compensating counter ions, but also as bridging groups. Hydrogen-bonding interactions among the phosphonate oxygen atoms, water molecules, nitric acid molecules and protonated 1,2-propyldiamine result in the formation of a three-dimensional supramolecular network. 相似文献
10.
11.
Wolfgang Imhof 《无机化学与普通化学杂志》2005,631(1):174-177
The condensation of 3‐ferrocenyl‐prop‐2‐enal with primary amines leads to the formation of the corresponding imines in good yields. The crystal structures of imines derived from p‐dimethylamino‐aniline and furfurylamine are determined by the ability of the functional groups to act as hydrogen bond donor or acceptor sites. Although N, N‐dimethyl‐N′‐(3‐ferrocenyl‐allylidene)‐benzene‐1, 4‐diamine and furan‐2‐ylmethyl‐(3‐ferrocenyl‐allylidene)‐amine are achiral molecules they crystallize in the non‐centrosymmetric space groups P21 and Pca21, respectively. The molecular architecture of N, N‐dimethyl‐N′‐(3‐ferrocenyl‐allylidene)‐benzene‐1, 4‐diamine is realized by the incorporation of dichloromethane acting as hydrogen bond donor and acceptor with both hydrogen and both chlorine atoms. On the other hand, the molecules of furan‐2‐ylmethyl‐(3‐ferrocenyl‐allylidene)‐amine are linked by hydrogen bonds towards the centroid of one of the cyclopentadienyl ligands and towards the oxygen atom of the furan ring to produce infinite chains. 相似文献
12.
Syntheses and Crystal Structures of [Cu4(As4Ph4)2(PRR′2)4], [Cu14(AsPh)6(SCN)2(PEt2Ph)8], [Cu14(AsPh)6Cl2(PRR′2)8], [Cu12(AsPh)6(PPh3)6], [Cu10(AsPh)4Cl2(PMe3)8], [Cu12(AsSiMe3)6(PRR′2)6], and [Cu8(AsSiMe3)4(PtBu3)4] (R, R′ = Organic Groups) Through the reaction of CuSCN with AsPh(SiMe3)2 in the presence of tertiary phosphines the compounds [Cu4(As4Ph4)2(PRR′2)4] ( 1 – 3 ) ( 1 : R = R′ = nPr, 2 : R = R′ = Et; 3 : R = Me, R′ = nPr) and [Cu14(AsPh)6(SCN)2(PEt2Ph)8] ( 4 ) can be synthesised. Using CuCl instead of CuSCN results to the cluster complexes [Cu14(AsPh)6Cl2(PRR′2)8] ( 5–6 ) ( 5 : R = R′ = Et; 6 : R = Me, R′ = nPr), [Cu12(AsPh)6(PPh3)6] ( 7 ) and [Cu10(AsPh)4Cl2(PMe3)8] ( 8 ). Through reactions of CuOAc with As(SiMe3)3 in the presence of tertiary phosphines the compounds [Cu12(AsSiMe3)6(PRR′2)6] ( 9 – 11 ) ( 9 : R = R′ = Et; 10 : R = Ph, R′ = Et; 11 : R = Et, R′ = Ph) and [Cu8(AsSiMe3)4(PtBu3)4] ( 12 ) can be obtained. In each case the products were characterised by single‐crystal‐X‐ray‐structure‐analyses. As the main structure element 1 – 3 each have two As4Ph42–‐chains as ligands. In contrast 4 – 12 contain discrete AsR2–ligands. 相似文献
13.
Syntheses and Crystal Structures of new Amido- und Imidobridged Cobalt Clusters: [Li(THF)2]3[Co3(μ2-NHMes)3Cl6] (1), [Li(DME)3]2[Co18(μ4-NPh)3(μ3-NPh)12Cl3] (2), [Li(DME)3]2[Co6(μ4-NPh)(μ2-NPh)6(PPh2Et)2] (3), and [Li(THF)4][Co8(μ3-NPh)6(μ2-NPh)3(PPh3)2] (4) The reactions of cobalt(II)-chloride with the lithium-amides LiNHMes and Li2NPh leads to an amido-bridged multinuclear complex [Li(THF)2]3[Co3(μ2-NHMes)3Cl6] ( 1 ) as well as to the imido-bridged cobalt cluster [Li(DME)3]2[Co18(μ4-NPh)3(μ3-NPh)12Cl3] ( 2 ). In the presence of tertiary phosphines two imido-bridged cobalt clusters [Li(DME)3]2[Co6(μ4-NPh)(μ2-NPh)6(PPh2Et)2] ( 3 ) and [Li(THF)4][Co8(μ3-NPh)6(μ2-NPh)3(PPh3)2] ( 4 ) result. The structures of 1 – 4 were characterized by X-ray single crystal structure analysis. 相似文献
14.
Nikolay G. Naumov Alexandra Y. Ledneva Sung-Jin Kim Vladimir E. Fedorov 《Journal of Cluster Science》2009,20(1):225-239
Reaction of polymeric compound Cs4[Re6S8(CN)4S2/2] with aqueous solution of KOH led to formation of trans-[Re6S8(CN)4(OH)2]4− anion which was crystallized in ordered Cs1.68K2.32[Re6S8(CN)4(OH)2] · 2H2O (1a) and disordered Cs1.83K2.17[Re6S8(CN)4(OH)2] · 2H2O (1b) modifications. The presence of two types of apical ligands, inert cyanides and labile hydroxides, opened a way to other
trans-[Re6S8(CN)4L2]
n− rhenium cluster complexes: trans-[Re6S8(CN)4Cl2]4−, trans-[Re6S8(CN)4(H2O)Br]3−, and trans-[Re6S8(CN)4Br2]4−, crystallized as Cs1.84K1.16(H)[Re6S8(CN)4Cl2] (2), Cs1.68K1.32[Re6S8(CN)4(H2O)Br] (3), (Me4N)3(H5O2)[Re6S8(CN)4Br2] (4), and CsK{Cu(H2O)2[Re6S8(CN)4Cl2]} · 4H2O (5) salts. 相似文献
15.
The compounds [(n‐Bu)4N]3[MoS4Ag3Cl4] ( 1 ) and [Et4N]3[WOS3Cu3I4] ( 2 ) were synthesized and characterized. Compound 1 crystallizes in the rhombohedral system, space group R3c with a = 17.194(1), b = 17.194(1), c = 39.194(3)Å, Z = 6, V = 10034.7(11)Å3. Compound 2 crystallizes in the rhombohedral system, space group R3c with a = 14.461(2), b = 14.461(2), c = 34.952(2)Å, Z = 6, V = 6329.9(13)Å3. The X‐ray crystallographic structure determinations show that these two cluster compounds consist of a slightly distorted cubic core. Nonlinear optical (NLO) properties of these two clusters were investigated by using Z‐scan techniques with an 8 ns pulsed laser at 532 nm; both clusters exhibit strong nonlinear optical absorption effect (effective α2 = 1.18 × 10—10 m · W—1 for 1 and 1.0 × 10—10 m · W—1 for 2 ). 相似文献
16.
Synthesis and Crystal Structure of (C5H5)Mo(CO)3(AuPPh3) and [(C5H5)Mo(CO)2(AuPPh3)4]PF6 CpMo(CO)3(AuPPh3) is obtained by the reaction of Li[CpMo(CO)3] with Ph3PAuCl at ?95°C in CH2Cl2. It crystallizes in the monoclinic space group C2/c with a = 2625.1(7), b = 883.2(1), c = 2328.4(7) pm, β = 116.39(1)° und Z = 8. In the complex the AuPPh3 group is coordinated to the CpMo(CO)3 fragment with a Au? Mo bond of 271,0 pm. The Mo atom thus achieves a square pyramidal coordination with the center of the Cp ring in apical position. CpMo(CO)3(AuPPh3) reacts under uv irradiation with an excess of Ph3PAuN3 to afford the cluster cation [CpMo(CO)2(AuPPh3)4]+. It crystallizes as [CpMo(CO)2(AuPPh3)4]PF6 · 2 CH2Cl2 in the orthorhombic space group P212121 with a = 1553.9(1), b = 1793.8(2), c = 2809.8(7) pm und Z = 4. The five metal atoms form a trigonal bipyramidal cluster skeleton with the Mo atom in equatorial position. The Mo? Au distances range from 275.5 to 280.8 pm, and the Au? Au distances are between 281.2 and 285.6 pm. 相似文献
17.
(NH4)2[Mo6Cl14] · H2O ( 1 ) was prepared from reactions of MoCl2 in ethanol with aqueous NH4Cl solution. It crystallizes in the monoclinic space group I2/a (no. 15), Z = 4 with a = 912.3(1), b = 1491.2(2), c = 1724.8(2) pm, β = 92.25(1)°; R1 = 0.023 (based on F values) and wR2 = 0.059 (based on F2 values), for all measured X‐ray reflections. The structure of the cluster anion can be given as [(Mo6Cl)Cl]2– (i = inner, a = outer ligands). Thermal stability studies show that 1 loses crystal water followed by the loss of NH4Cl above 350 °C to yield MoCl2. The water‐free compound (NH4)2[Mo6Cl14] ( 2 ) was synthesized by solid state reaction of MoCl2 and NH4Cl in a sealed quartz ampoule at 270 °C. No single‐crystals could be obtained. Decompositions of 1 and 2 under nitrogen and argon exhibited the loss of NH4Cl at about 350 °C. Decomposition under NH3 resulted in the formation of MoN and Mo2N at 540 °C and 720 °C, respectively. 相似文献
18.
19.
Four coordination polymers, [Cu(NIPH)(Bim)2]n ( 1 ), [Co(NIPH)(Bim)2]n ( 2 ), [Zn(NIPH)(Bim)]n ( 3 ), and [Cd(NIPH)(Bim)(H2O)]n ( 4 ) (NIPH = 5‐nitroisophthalate and Bim = benzimidazole) have been synthesized and characterized by elemental analysis, IR, TGA and single‐crystal X‐ray diffraction. The crystal structural analyses reveal that 1 and 2 are composed of zig‐zag chains and straight line chains, respectively. 3 and 4 are constructed by double‐stranded loop‐like chains. All these chain‐like structures are finally packed into three‐dimensional networks through hydrogen bonds. Thermogravimetic analyses (TGA) of 1 – 4 and temperature‐dependent magnetic susceptibilities of 1 have been performed. 相似文献
20.
《Tetrahedron letters》2014,55(51):7076-7081
Comparison is made of the crystal structures of two different solvates of a molecule containing both H-bond donor and acceptor sites, which is found either as a monomer or a hexamer. The solid state features are analysed with respect to the behaviour seen in solutions in the same solvents as found in the crystal lattices. Dimethylsulfoxide appears to be particularly effective in preventing aggregation not only through H-bond acceptance but also through contacts at S which may block H-bond acceptor sites adjacent to donors. 相似文献