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Preparation and properties of a but-2-enyl butadiene complex of cobalt and of an analogous complex from isoprene 钴的2-烯基丁二烯配合物及异戊二烯类似配合物的制备及性质
Pub Date : 1971-01-01 DOI: 10.1039/J19710003246
G. Vitulli, L. Porri, A. Segre
Reaction of butadiene with cobalt(II) chloride in the presence of metallic zinc, ethanol, and triphenylphosphine gives the complex anti-π-but-2-enylbutadiene(triphenylphosphine)cobalt, (C4H7)(C4H6)CoPPh3. This is readily isomerized to the syn-isomer by action of PPh3, dimethyl sulphoxide, or pyridine. From isoprene an analogous complex (C5H9)(C5H8)CoPPh3 is obtained. The co-ordinated diolefin is displaced from these complexes by carbon monoxide to give the corresponding dicarbonyl derivatives. N.m.r. data for all of the complexes isolated are reported. Reaction of the complexes (C4H7)(C4H6)CoPPh3 and (C5H9)(C5H8)CoPPh3 with allene, 3-methyl-buta-1,2-diene, and acetylene gives highly crystalline linear polymers.
丁二烯与氯化钴(II)在金属锌、乙醇和三苯基膦存在下反应得到抗π-丁-2-烯基丁二烯(三苯基膦)钴络合物(C4H7)(C4H6)CoPPh3。在PPh3、二甲基亚砜或吡啶的作用下,它很容易异构成同分异构体。从异戊二烯得到类似的配合物(C5H9)(C5H8)CoPPh3。配位的二烯烃被一氧化碳从这些配合物中置换,得到相应的二羰基衍生物。报道了所有分离的配合物的核磁共振数据。配合物(C4H7)(C4H6)CoPPh3和(C5H9)(C5H8)CoPPh3与烯、3-甲基丁酸-1,2-二烯和乙炔反应得到高度结晶的线状聚合物。
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引用次数: 10
Magnetic and spectroscopic studies of some lutidine complexes of cobalt(II) and nickel(II) 钴(II)和镍(II)配合物的磁性和光谱学研究
Pub Date : 1971-01-01 DOI: 10.1039/J19710000658
D. Machin, J. Sullivan
Magnetic susceptibilities in the temperature range 80—300 K, and electronic spectra of some octahedral and tetrahedral complexes of cobalt(II) chloride and nitrate, and nickel(II) chloride and bromide with 2,3-, 2,4-, 3,4-, and 3,5-lutidine are reported. The magnetic data for the octahedral cobalt(II) and tetrahedral nickel(II) complexes are consistent with structures having axial symmetry.
本文报道了氯化钴(II)和硝酸、氯化镍(II)和溴与2,3-、2,4-、3,4-和3,5-鲁替丁的八面体和四面体配合物在80 ~ 300 K温度范围内的磁化率和电子能谱。八面体钴(II)和四面体镍(II)配合物的磁性数据与具有轴对称的结构一致。
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引用次数: 4
Further studies of the metal–carbonyl bending vibrations of (π-ring)M(CO)2X derivatives of the first-row transition metals 第一排过渡金属(π-环)M(CO)2X衍生物的金属-羰基弯曲振动的进一步研究
Pub Date : 1971-01-01 DOI: 10.1039/J19710000106
A. R. Manning
The i.r. spectra of various (π-ring)M(CO)2X complexes of chromium, manganese, and iron have been investigated in the regions 225–700 and 1850–2100 cm–1. Absorption bands due to vibrations of the (π-ring)M(CO)2 moieties are reported and assigned. Trends in frequencies and relative intensities of those bands which are due largely to the δ(MCO) vibrations are discussed, and shown to depend on the ligand X.
研究了铬、锰和铁的M(CO)2X (π环)配合物在225 ~ 700和1850 ~ 2100 cm-1范围内的红外光谱。本文报道了π环M(CO)2基团振动的吸收带。讨论了主要由δ(MCO)振动引起的频带的频率和相对强度的趋势,并表明它们依赖于配体X。
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引用次数: 6
Alkali-metal complexes. Part VI. Crystal and molecular structure of a complex formed from isonitrosoacetophenone and potassium o-nitrophenolate 碱金属配合物。第六部分:异硝基苯乙酮和邻硝基酚酸钾形成的络合物的晶体和分子结构
Pub Date : 1971-01-01 DOI: 10.1039/J19710000745
M. Bush, M. Truter
The crystal structure of a complex formed from isonitrosoacetophenone and potassium o-nitrophenolate having the formula KC6H4(NO2)OHONCHC(O)C6H5 has been determined. The crystals are monoclinic and have space group P21/c with Z= 4, a= 10·826(4), b= 5·581(3), c= 24·559(10)A, and β= 102°4′(1′). 1557 independent reflections collected on an automatic diffractometer were used to refine the structure by full-matrix least-squares methods to a conventional R of 0·053.The potassium is surrounded by eight electron-rich atoms of the ligands. Seven of these are oxygen atoms and one is the oxime-nitrogen atom. The two ligands may be regarded as chelates; the o-nitrophenol forms a six-membered ring and the isonitrosoacetophenone ligand makes a five-membered ring by the interaction of the potassium ion with the keto-oxygen atom and the oxime-nitrogen atom. Two oxygen atoms from the o-nitrophenolate interact with two symmetry-related potassium ions and thereby form a polymeric sequence parallel to the b-axis. The o-nitrophenolate is connected to the isonitrosoacetophenone by an apparently symmetrical hydrogen bond of length 2·51 A. The dimensions of the o-nitrophenolate ligand indicate a significant contribution of a quinonoid form.
测定了异硝基苯乙酮与邻硝基苯酚钾形成的络合物的晶体结构,分子式为KC6H4(NO2)OHONCHC(O)C6H5。晶体为单斜晶,空间群为P21/c, Z= 4, a= 10·826(4),b= 5·581(3),c= 24·559(10)a, β= 102°4′(1′)。利用自动衍射仪采集的1557个独立反射光,利用全矩阵最小二乘法将结构细化到常规的R为0.053。钾被八个富含电子的配体原子所包围。其中7个是氧原子1个是氧氮原子。这两种配体可视为螯合物;通过钾离子与酮氧原子和氧氮原子的相互作用,邻硝基苯酚形成六元环,异硝基苯乙酮配体形成五元环。来自邻硝基苯酚的两个氧原子与两个对称相关的钾离子相互作用,从而形成平行于b轴的聚合序列。邻硝基苯酚通过一个长度为2.51 A的明显对称的氢键与异硝基苯乙酮相连。邻硝基苯酚配体的尺寸表明醌类形式的重要贡献。
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引用次数: 12
Infrared spectra of trimetal dodecacarbonyl species in frozen gas matrices at 20 K 20 K冷冻气体基质中三金属十二羰基的红外光谱
Pub Date : 1971-01-01 DOI: 10.1039/J19710000654
M. Poliakoff, J. J. Turner
Infrared spectra are reported for Fe3(CO)12, Ru3(CO)12, Os3(CO)12, and Ru3(CO)10(NO)2 in argon and nitrogen matrices at 20 K. There are strong similarities between the matrix and solution spectrum of Ru3(CO)12, or Os3(CO)12, or Ru3(CO)10(NO)2 and it appears that for M3(CO)12(M = Ru, Os) the isolated molecules are somewhat distorted from an idealized D3h symmetry, with greater distortions in argon than in nitrogen. The matrix spectrum of Fe3(CO)12 is completely different from the solution spectrum and indicates that the isolated molecule has the doubly bridged C2v structure observed in the solid. The results strengthen the hypothesis that Fe3(CO)12 is present in solution with a structure different from that in the solid.
报道了Fe3(CO)12、Ru3(CO)12、Os3(CO)12和Ru3(CO)10(NO)2在20k氩和氮基体中的红外光谱。在Ru3(CO)12、Os3(CO)12或Ru3(CO)10(NO)2的基体和溶液谱之间有很强的相似性,并且对于M3(CO)12(M = Ru, Os),分离的分子似乎从理想的D3h对称中有些扭曲,在氩气中的扭曲比在氮气中的更大。Fe3(CO)12的基体光谱与溶液光谱完全不同,表明分离分子具有固体中观察到的双桥C2v结构。结果强化了Fe3(CO)12在溶液中以不同于固体结构存在的假设。
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引用次数: 16
Metal complex formazans. Part II. The reaction of copper salts with certain tetradentate formazans 金属络合物。第二部分。铜盐与某些四齿甲酸盐的反应
Pub Date : 1971-01-01 DOI: 10.1039/J19710003385
R. Price
1,5-Di-(2-hydroxyphenyl)- and 1-(2-hydroxyphenyl)-5-(2-carboxyphenyl)-3-substituted formazans react with both cupric acetate and cuprous chloride in methanol to give square planar copper(II) complexes. In contrast, under comparable conditions, 1,5-di-(2-carboxyphenyl)-3-substituted formazans give copper(II) complexes containing two molecules of water, which are probably octahedral. With cupric chloride in methanol two competing reactions occur, metal complex formation and oxidation of the formazan to tetrazolium salt. The relative importance of these reactions is governed by the substituents on the formazan.
1,5-二-(2-羟基苯基)-和1-(2-羟基苯基)-5-(2-羧基苯基)-3取代的甲氮杂与醋酸铜和氯化亚铜在甲醇中反应生成方形平面铜(II)配合物。相比之下,在类似条件下,1,5-二-(2-羧基苯基)-3取代的甲酸甲烷得到含有两分子水的铜(II)配合物,可能是八面体。氯化铜在甲醇中会发生两个相互竞争的反应,形成金属络合物和将甲醛氧化为四氮唑盐。这些反应的相对重要性是由甲酸甲酯上的取代基决定的。
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引用次数: 5
Steric effects and five-co-ordination in first-row transition-metal compounds. Compounds with a linear tetra-amine ligand 第一排过渡金属化合物中的立体效应和五配位。具有线性四胺配体的化合物
Pub Date : 1971-01-01 DOI: 10.1039/J19710001029
J. G. Gibson, E. Mckenzie
Compounds of MnII, CoII, NiII, CuII and ZnII of the type M(chelate)X2[where chelate =NN′-di-(3-aminopropyl)piperazine; X = one of a variety of anions] are reported. Square-pyramidal five-co-ordinate cations in the compounds [M(chelate)X]X and [M(chelate)X]Y are characterised for the following: where M = CoII, X = Br and I; where M = NiII, X = Cl, Br and possibly NCS; and where M = CuII, X = Cl, Br, I, NCS, and Y = ClO4, PF6. In addition, a five-co-ordinate species Cu(chelate)Cl2 in which the ligand is only terdentate with a free NH2, also is characterised. Four co-ordinate planar [MN4]2+ species also are characterised for NiII, CuII and perhaps CoII. No significant structural data is available for the MnII, FeII, or ZnII species. The structural assignments for the solid compounds rely on X-ray data (powder-pattern correlations with a known three-dimensional structure), i.r. and electronic spectra, and magnetic measurements. Structural studies of solutions in non-aqueous solvents also are reported. These rely on electronic spectra. Specific ion-pairing limits the use of conductivity data. The origin of the five-co-ordinate structures in these compounds is discussed in terms of the peculiar steric effects of the ligand, which is the precursor of a class of homologous ligands, each of which is expected to give five-co-ordinate compounds of these metals.
M(螯合物)X2型MnII、CoII、NiII、CuII和ZnII化合物[其中螯合物=NN′-二-(3-氨基丙基)哌嗪;X =多种阴离子中的一种]。化合物[M(螯合物)X]X和[M(螯合物)X]Y中的方-锥体五坐标阳离子的特征如下:其中M = CoII, X = Br和I;其中M = NiII, X = Cl, Br和可能的NCS;其中M = CuII, X = Cl, Br, I, NCS, Y = ClO4, PF6。此外,还有一种五配位的Cu(螯合)Cl2,其配体仅与游离NH2三齿合。四个坐标平面[MN4]2+物种也具有NiII, CuII和CoII的特征。没有关于MnII、FeII和ZnII种的重要结构数据。固体化合物的结构分配依赖于x射线数据(粉末模式与已知三维结构的相关性)、红外光谱和电子光谱以及磁测量。非水溶剂中溶液的结构研究也有报道。这些依赖于电子光谱。特定离子配对限制了电导率数据的使用。根据配体的特殊空间效应讨论了这些化合物中五配位结构的起源,配体是一类同源配体的前体,每一类同源配体都有望得到这些金属的五配位化合物。
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引用次数: 10
Antimony-121 Mössbauer spectroscopy of some chloro-complexes of antimony 锑-121 Mössbauer一些锑的氯络合物的光谱
Pub Date : 1971-01-01 DOI: 10.1039/J19710001855
T. Birchall, B. Valle, E. Martineau, J. Milne
The 121Sb Mossbauer spectra of a number of chloroantimony salts have been examined. The presence of both SbIII and SbV in Rb2SbCl6 is confirmed. Extremely large, negative isomer shifts are obtained for [SbIIICl6]3– species and are interpreted in terms of a stereochemically inactive Ione-pair of electrons.
研究了若干氯锑盐的121Sb穆斯堡尔谱。证实Rb2SbCl6中存在sbii和SbV。[SbIIICl6]3 -类得到了极大的负同分异构体位移,并用不具有立体化学活性的离子对电子来解释。
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引用次数: 9
Single-crystal electronic and electron spin resonance spectra of thiocyanatotriethylenetetraminecopper(II) thiocyanate 硫氰酸三乙四铜(II)的单晶电子和电子自旋共振谱
Pub Date : 1971-01-01 DOI: 10.1039/J19710001442
R. J. Dudley, B. Hathaway
The polarised single-crystal electronic spectra and e.s.r. spectra of thiocyanatotriethylenetetraminecopper(II) thiocyanate have been measured. The correlation of the single-crystal g-values and the crystallographic data suggest a dxy ground-state for the approximately square-pyramidal CuN4S chromophore present. The electronic spectra are interpreted in C2v effective symmetry and yield a tentative partial one-electron orbital sequence: dxy > dz2 > dxz′≈dyz. The concept of varying tetragonal distortion, introduced to discuss the stereochemistry of six-co-ordinate copper(II) complexes, is extended to cover a five-co-ordinate square-pyramidal stereochemistry.
测定了硫氰酸三乙四铜(II)的极化单晶电子能谱和e.s.r.能谱。单晶g值与晶体学数据的相关性表明,近似方形锥体的CuN4S发色团存在一个xy基态。电子谱用C2v有效对称解释,得到了一个暂定的部分单电子轨道顺序:dxy > dz2 > dxz’≈dyz。为讨论六坐标铜(II)配合物的立体化学而引入的变四方畸变的概念,被扩展到涵盖五坐标方锥体立体化学。
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引用次数: 7
Preparation and infrared spectra of some Group IV metal–tricarbonylnitrosyliron derivatives 一些IV族金属-三羰基亚硝基吡啶衍生物的制备及其红外光谱
Pub Date : 1971-01-01 DOI: 10.1039/J19710000256
M. Casey, A. R. Manning
Various complexes of the types [(R3M)Fe(CO)2(NO)L]. [R = Ph, Me, Et, Bun, Cl, or Br; M = Ge, Sn, or Pb; L = CO, Ph3P, (PhO)3P, or PhEt2As] and [(Ph2M){Fe(CO)2(NO)L}2][M = Sn or Pb; L = CO, (PhO)3P, or PhEt2As] are described, and a new method of preparing compounds containing transition metal to tin bonds is reported. On the basis of their i.r. spectra, it is suggested that these compounds have trigonal bipyramidal coordination about the iron atom, and a linear M–Fe–L system. When R3M is Ph2ClSn or PhCl2Sn, or L is PhEt2As isomerism is observed owing to restricted rotation about the Fe–Sn or Fe–As bond. In solution in acetonitrile [(Ph3M)Fe(CO)3(NO)] and [(Ph2M){Fe(CO)3(NO)}2](M = Sn or Pb) dissociate completely, and reversibly to give the [Fe(CO)3(NO)]– ion.
各种类型的配合物[(R3M)Fe(CO)2(NO)L]。[R = Ph, Me, Et, Bun, Cl, or Br;M = Ge, Sn,或Pb;L = CO, Ph3P, (PhO)3P,或PhEt2As]和[(Ph2M){Fe(CO)2(NO)L}2][M = Sn或Pb;描述了L = CO, (PhO)3P,或PhEt2As],并报道了一种制备含过渡金属-锡键化合物的新方法。红外光谱表明,这些化合物在铁原子上具有三角双锥体配位,并具有M-Fe-L线性体系。当R3M为Ph2ClSn或PhCl2Sn时,或L为PhEt2As时,由于Fe-Sn或Fe-As键的旋转受限,可以观察到异构现象。在乙腈溶液中[(Ph3M)Fe(CO)3(NO)]和[(Ph2M){Fe(CO)3(NO)}2](M = Sn或Pb)完全解离,可逆生成[Fe(CO)3(NO)]离子。
{"title":"Preparation and infrared spectra of some Group IV metal–tricarbonylnitrosyliron derivatives","authors":"M. Casey, A. R. Manning","doi":"10.1039/J19710000256","DOIUrl":"https://doi.org/10.1039/J19710000256","url":null,"abstract":"Various complexes of the types [(R3M)Fe(CO)2(NO)L]. [R = Ph, Me, Et, Bun, Cl, or Br; M = Ge, Sn, or Pb; L = CO, Ph3P, (PhO)3P, or PhEt2As] and [(Ph2M){Fe(CO)2(NO)L}2][M = Sn or Pb; L = CO, (PhO)3P, or PhEt2As] are described, and a new method of preparing compounds containing transition metal to tin bonds is reported. On the basis of their i.r. spectra, it is suggested that these compounds have trigonal bipyramidal coordination about the iron atom, and a linear M–Fe–L system. When R3M is Ph2ClSn or PhCl2Sn, or L is PhEt2As isomerism is observed owing to restricted rotation about the Fe–Sn or Fe–As bond. In solution in acetonitrile [(Ph3M)Fe(CO)3(NO)] and [(Ph2M){Fe(CO)3(NO)}2](M = Sn or Pb) dissociate completely, and reversibly to give the [Fe(CO)3(NO)]– ion.","PeriodicalId":17321,"journal":{"name":"Journal of The Chemical Society A: Inorganic, Physical, Theoretical","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86219130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
期刊
Journal of The Chemical Society A: Inorganic, Physical, Theoretical
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