The Structures of the Decaphenylmetallocenium Cations of Chromium and Cobalt

1997 ◽  
Vol 50 (11) ◽  
pp. 1035 ◽  
Author(s):  
Leslie D. Field ◽  
Trevor W. Hambley ◽  
Taian He, ◽  
Anthony F. Masters ◽  
Peter Turner
Keyword(s):  
Methylene Chloride ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography

Decaphenylchromocenium and decaphenylcobaltocenium cations [M(η5-C5Ph5)2]+, M = Cr and Co, were synthesized by oxidation of the corresponding neutral decaphenylchromocene and decaphenylcobaltocene respectively with nitrosyl tetrafluoroborate. The complexes are air-stable and were fully characterized; decaphenylchromocenium tetrafluoroborate (1) and decaphenylcobaltocenium tetrafluoroborate (2) were structurally characterized by X-ray crystallography. Crystals of (1) (as a water/methylene chloride solvate), C70·5H50BClCrF4O0·5, M 1079·42, are triclinic, space group P -1 (No. 2), a 13·634(5), b 17·424(5), c 13·298(4) Å, α 106·45(2), β 101·83(3), γ 74·56(2)°, Z 2. Crystals of (2) (as a water/methylene chloride solvate), C70·5H50BClCoF4O0·5, M 1086·36, are triclinic, space group P-1 (No. 2), a 13·633(2), b 17·683(3), c 13·255(3) Å, α 107·95(1), β 102·71(1), γ 73·23(1)°, Z2.

Supramoleküle aus Kronenethern und geminalen Sulfonen: Synthese von vier binären Komplexen und Kristallstruktur von (CH2CH2O)4·2H 2C(SO2C2H5)2/Supramolecules of Crown Ethers with Geminal Sulfones: Synthesis of Four Binary Complexes and Crystal Structure of (CH2CH2O )4·2H2C(SO2C2H5)2

1995 ◽  
Vol 50 (7) ◽  
pp. 1018-1024 ◽  
Author(s):  
Axel Michalides ◽  
Dagmar Henschel ◽  
Armand Blaschette ◽  
Peter G. Jones
Keyword(s):  
Monoclinic Space Group ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
H Nmr ◽  
Binary Complexes ◽  
Cyclic Polyethers ◽  
Adjacent Unit ◽  
Methylene Group

In a systematic search for supramolecular complexes involving all combinations of the cyclic polyethers 12-crown-4 (12C4), 15-crown-5 (15C 5), 18-crown-6 (18C 6) and dibenzo- 18-crown-6 (DB -18C6), and the geminal di- or trisulfones H2C(SO 2Me)2, H2C (SO2Et)2 and HC (SO2Me)3-n (SO2Et)n (n = 0 -3 ) , only the following four complexes could be isolated and unequivocally characterized by elemental analysis and 1H NMR spectroscopy: [(12C4){H2C (SO2Et)2}2] (3), [(18C6){H2C (S O2Me)2}] (4), [(DB -18C 6){H2C (SO2Et)2}] (5) and [(D B -18C 6)2{HC (SO2Me )(SO2Et)2}3] (6). The structure of 3 (triclinic, space group P1̄) consists of crystallographically centrosymmetric formula units, in which the disulfone molecules are bonded on each side of the ring by two C -H ··· O(crown) interactions originating from the central methylene group (H···O 213 pm) and from the methylene group of one EtSO2 moiety ( H ··· O 237 pm). Formula units related by translation are connected into parallel strands by a third type of reciprocal C -H ···O bond (H ···O 232 pm) between the second H atom of the central methylene group and a sulfonyl oxygen atom of the adjacent unit. The structure of 4 (monoclinic, space group C2/c) showed severe disorder of the crown ether and could not be refined satisfactorily. Compounds 5 and 6 crystallized as long and extremely thin fibres, indicative of linear-polymeric supramolecular structures; single crystals for X-ray crystallography were not available.

Organoamido- and Aryloxo-lanthanoids. III. Preparation and X-Ray Structure of Bis(μ-3,5-dimethylpyrazolato-N:N′)bis(μ-tetrahydrofuran-O)-bis[bis(η2-3,5-dimethylpyrazolato-N,N')neodymium(III)]

1991 ◽  
Vol 44 (4) ◽  
pp. 613 ◽  
Author(s):  
GB Deacon ◽  
BM Gatehouse ◽  
S Nickel ◽  
SN Platts
Keyword(s):  
Trigonal Prism ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
Dimeric Structure

Reaction of neodymium metal with bis ( pentafluorophenyl )mercury and pyrazole ( Hpz ) or 3,5-dimethylpyrazole ( Hdmpz ) in tetrahydrofuran ( thf ) yields Nd ( pz )3 or [ Nd ( dmpz )3( thf )]2. X-Ray crystallography has shown that [Nd (dmpz )3( thf )]2 [triclinic, space group Pī (No. 2), a 11.070(4), b 11.364(3), c 10.867(2)Ǻ, α 103.00(1), β 120.78(3), γ 97.68(2)°, R 0.0235, Rw 0.0247 for 5575 observed reflections] has a novel centrosymmetric dimeric structure. Each neodymium is eight-coordinate (4,4 bicapped trigonal prism) with two terminal chelating dmpz ligands [ Nd -N 2.400(2), 2.413(3), 2.422(3), 2.426(3)Ǻ], two bridging dmpz ligands [ Nd -N 2.509(2), 2.511(2)Ǻ], and, unexpectedly, two bridging tetrahydrofuran ligands [ Nd -O 2.792(2), 2.757(2)Ǻ].

Metal-selenolate chemistry: stereochemistry of adamantane-type clusters of formula [(μ-SePh)6(MSePh)4]2− (M = Zn and Cd)

1992 ◽  
Vol 70 (3) ◽  
pp. 792-801 ◽  
Author(s):  
Jagadese J. Vittal ◽  
Philip A. W. Dean ◽  
Nicholas C. Payne
Keyword(s):  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Bridging Ligands ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
Space Groups ◽  
X Ray Crystallography ◽  
Cell Dimensions ◽  
Minimum Number

The structures of three tetramethylammonium salts containing anions of formula [(μ-SePh)6(MSePh)4]2− (M = Zn and Cd) were determined by single crystal X-ray diffraction techniques. The Zn salt crystallizes in different space groups depending upon the solvent combination used in the synthesis. Thus crystals of (Me4N)2[Zn4(SePh)10], 1, grown from a mixture of methanol, acetonitrile, and acetone are triclinic, space group [Formula: see text] with cell dimensions a = 13.214(2), b = 23.859(2), c = 13.072(1) Å, α = 91.134(8), β = 113.350(8), γ = 79.865(9)°, and Z = 2. In the absence of acetone, a solvated crystal (Me4N)2[Zn4(SePh)10]•CH3CN, 2, is formed, which belongs to the monoclinic space group P21/n with a = 14.248(1), b = 39.722(2), c = 13.408(1) Å, β = 97.132(5)°, and Z = 4. The Cd salt (Me4N)2[Cd4(SePh)10], 3, crystallizes in the monoclinic space group P21/c, with a = 20.830(2), b = 14.282(1), c = 25.872(1) Å, β = 99.626(6)°, and Z = 4. These three salts are the first examples of homoleptic, tetranuclear selenolatometal(II) anions with (μ-Se)6M4 cages of adamantane-type stereochemistry. In each case the phenyl substituents of the bridging ligands adopt the configuration [aae, aae, aee, aee], which has the minimum number of two 1,3-axial–axial non-bonding substituent interactions. Keywords: selenolate complexes, synthesis, X-ray crystallography, isomerism, adamantane stereochemistry.

Synthesis, spectroscopic characterization, and structural studies of new Cu(I) and Cu(II) complexes containing organophosphorus ligands, and crystal structures of (Ph3P)2Cu[S2PMe2], (Ph3P)2Cu[(OPPh2)2N], Cu[(OPPh2)2N]2, and Cu[(OPPh2)(SPPh2)N]2

2001 ◽  
Vol 79 (5-6) ◽  
pp. 983-991 ◽  
Author(s):  
Anca Silvestru ◽  
Adina Rotar ◽  
John E Drake ◽  
Michael B Hursthouse ◽  
Mark E Light ◽  
...  
Keyword(s):  
Spectroscopic Characterization ◽  
Molecular Structures ◽  
Orthorhombic Space Group ◽  
Phosphorus Ligands ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
Cell Parameters ◽  
X Ray Crystallography ◽  
Multinuclear Nmr Spectroscopy

The Cu(I) complexes, (Ph3P)2CuL (L = [S2PMe2]-, [OSPR2]- (R = Me, Ph), [(XPR2)(YPR'2)N]- (X, Y, R, R' = O, O, Ph, Ph; O, S, Ph, Ph; O, S, OEt, Ph; S, S, Me, Me)) and Cu(II) complexes, CuL2 (L = [(XPR2)(YPR'2)N]- (X, Y, R, R' = O, O, Ph, Ph; O, S, Ph, Ph)), have been prepared. The Cu(I) derivatives were characterized by multinuclear NMR spectroscopy and in two cases by X-ray crystallography. (Ph3P)2Cu[S2PMe2] (1) crystallizes in the orthorhombic space group P212121 (No. 19) with cell parameters a = 9.782(2), b = 17.808(4), c = 20.216(4) Å, V = 3521(6) Å3 and Z = 4, and (Ph3P)2Cu[(OPPh2)2N] (4) in the triclinic space group P[Formula: see text] (No. 2) with cell parameters a = 9.8079(2), b = 12.9141(3), c = 22.5666(5) Å, α = 75.714(2), β = 79.465(2), γ = 68.2770(8)°, V = 2559.9(1) Å3 and Z = 2. In both cases the phosphorus ligands are bidentate, thus resulting in monomeric molecules that contain tetrahedral CuP2S2 and CuP2O2 cores. The molecular structures of two of the Cu(II) derivatives were also determined. Cu[(OPPh2)2N]2 (8) and Cu[(OPPh2)(SPPh2)N]2 (9) crystallize in the triclinic space group P[Formula: see text] (No. 2) with cell parameters a = 8.887(2), b = 10.739(2), c = 12.477(3) Å, α = 77.61(3), β = 76.15(5), γ = 79.46(3)°, V = 1118.3(4) Å3 and Z = 1 for 8, and a = 9.626(2), b = 14.151(3), c = 24.752(5) Å, α = 88.23(3), β = 79.93(3), γ = 89.77(3)°, V = 3181(1) Å3 and Z = 3 for 9. The molecule of Cu[(OPPh2)2N]2 (8) has a planar CuO4 core, while in Cu[(OPPh2)(SPPh2)N]2 (9) both planar and tetrahedral copper cores are observed in a ratio of 1:2.Key words: structure, copper, thiophosphinates, oxo- and thio-imidodiphosphinates

"A-frame" vs. "open-book" geometries in binuclear complexes bridged by diphosphines and mercaptothiazolinate ligands. Unusual examples involving a bridging bis(diphenylphosphino)ethane group

1993 ◽  
Vol 71 (5) ◽  
pp. 726-737 ◽  
Author(s):  
Jianliang Xiao ◽  
Martin Cowie
Keyword(s):  
Monoclinic Space Group ◽  
Stable Form ◽  
Binuclear Complexes ◽  
Open Book ◽  
Solid Reaction ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
A Cell

Reaction of the tetracarbonyl species [M(CO)2(µ-mtz)]2 (M = Rh, Ir; mtz = 2-mercaptothiazolinate) with 1 equivalent of the diphosphines (Ph2P(CH2)nPPh2; n = 1 (dppm), 2 (dppe)) yields the compounds [M2(CO)2(µ-L)(µ-mtz)2] (M = Rh, L = dppm (1), dppe (3); M = Ir, L = dppm (2)), which readily undergo oxidative addition of iodine to give [M2I2(CO)2(µ-L)(µ-mtz)2] (M = Rh, L = dppm (4), dppe (6); M = Ir, L = dppm (5)). When 2 equivalents of dppm are used, the A-frame compounds [M2(CO)2(η1-mtz)(µ-mtz)(dppm)2] (M = Rh (7), Ir (8)) are afforded. In solution the dangling mtz group of 7 undergoes exchange with both the free mtz anion and the bridging mtz ligand. Compounds 7 and 8 are also produced by treatment of trans-[MCl(CO)(dppm)]2 (M = Rh, Ir) with 2 equivalents of the mtz anion. Reaction of these dppm-bridged dichloro species with 1 equivalent of the mtz anion yields [M2Cl(CO)2(µ-mtz)(dppm)2] (M = Rh (9a), Ir (10)). Compound 9a undergoes reversible Cl− dissociation to give [Rh2(CO)2(µ-mtz)(dppm)2][Cl] (9b), which is also the stable form in the solid. Reaction of 9 with CO gives the carbonyl-bridged species [Rh2(CO)2(µ-CO)(µ-mtz)(dppm)2][Cl]. The structures of 6 and 9b have been determined by X-ray crystallography. Compound 6 crystallizes in the triclinic space group [Formula: see text] with one-half equivalent of THF per asymmetric unit in a cell having a = 9.856(3) Å, b = 14.078(6) Å, c = 16.245(5) Å, α = 103.66(3)°, β = 93.21(3)°, γ = 92.91(3)°, V = 2182(1) Å3, and Z = 2, and has refined to R = 0.045 and Rw = 0.057 on the basis of 433 parameters varied. Compound 9b crystallizes with one equivalent of CH2Cl2 in the monoclinic space group P21/n with a = 11.400(1) Å, b = 21.944(2) Å, c = 22.134(1) Å, β = 92.494(7)°, V = 5532(1) Å3, and Z = 4, and has refined to R = 0.062 and Rw = 0.082 on the basis of 613 parameters varied.

[Ni5(SEt)10] und [Ni4(SC6H11)8], homoleptische Nickel-Thiolate mit pentagonal-prismatischen und cubanartigen Schwefelgerüsten /[Ni5(SEt)10] and [Ni4(SC6H11)8], Homoleptic Nickel-Thiolates with Pentagonal-Prismatic and Cubane-Like Sulfur Frameworks

1987 ◽  
Vol 42 (9) ◽  
pp. 1121-1128 ◽  
Author(s):  
Michael Kriege ◽  
Gerald Henkel
Keyword(s):  
Methylene Chloride ◽  
Methanol Solution ◽  
Monoclinic Space Group ◽  
Orthorhombic Space Group ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
Coordination Sites ◽  
Square Planar ◽  
Solvent Molecules

NiCl2 reacts with NaSR in methanol solution to give the black diamagnetic complexes [Ni5(SR)10] (R = Et, 1) and [Ni4(SR)8] (R = C6H11 , 2). Crystals of 1 are monoclinic, space group P21/h with a = 13.149(4), b = 15.571(4), c = 17.917(5) Å , β = 105.31(2)° and Z = 4. 2 crystallizes from methylene chloride with sixteen solvent molecules per unit cell in the orthorhombic space group Ibca with a = 17.902(8), b = 18.289(8), c = 37.99(2) Å and Z = 8. The structures of 1 and [Ni4(SC6HM)8] · 2 CH 2Cl2 (3) have been determined by X-ray crystallography and refined to R(RW) = 0.072 (0.062) and 0.119 (0.128), respectively. Both complexes are cyclic neutral molecules and contain square planar NiS4 coordination sites (1: mean Ni - S 2.200 Å , mean S -Ni -S 81.8 ( 2 x ) . 98.3 ( 2 x ) , 170.8° ( 2 x ) ; 2: mean Ni - S 2.213 Å , mean S - Ni - S 80.9 (2 x ) , 98.2 ( 2 x ) , 167.5°(2 x )) condensed via opposite edges. A s a result, prismatic sulfur frameworks are observed which are pentagonal in the case of 1 and tetragonal in the case of 2. Their lateral faces are centered by Ni atoms. The symmetry of the Ni-S core portion approaches D5h for 1 and D4h for 2. With reference to the toroidal N i-S frameworks, the sulfur-carbon bonds of each pair of opposite ligands are in axial and equatorial positions, respectively. This configuration alternates around the prismatic sulfur arrangement which is completely compatible with the even number of nickel atoms present in 2, but results in a node for 1 due to the five-fold symmetry.

Conformational polymorphism in a cobalt(II) dithiocarbamate complex

2020 ◽  
Vol 76 (9) ◽  
pp. 921-926
Author(s):  
Jetnipat Songkerdthong ◽  
Phimphaka Harding ◽  
David J. Harding
Keyword(s):  
Slow Evaporation ◽  
Orthorhombic Space Group ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
Pyramidal Geometry ◽  
Dithiocarbamate Ligand ◽  
Coordinate Geometry ◽  
Square Pyramidal Geometry

Two conformational polymorphs of (N,N-dibutyldithiocarbamato-κ2 S,S′)[tris(3,5-diphenylpyrazol-1-yl-κN 2)hydroborato]cobalt(II), [Co(C45H34BN6)(C9H18NS2)] or [TpPh2Co(S2CNBu2)], 1, are accessible by recrystallization from dichloromethane–methanol to give orthorhombic polymorph 1a, while slow evaporation from acetonitrile produces triclinic polymorph 1b. The two polymorphs have been characterized by IR spectroscopy and single-crystal X-ray crystallography at 150 K. Polymorphs 1a and 1b crystallize in the orthorhombic space group Pbca and the triclinic space group P-1, respectively. The polymorphs have a trans (1a) and cis (1b) orientation of the butyl groups with respect to the S2CN plane of the dithiocarbamate ligand, which results in an intermediate five-coordinate geometry for 1a and a square-pyramidal geometry for 1b. Hirshfeld surface analysis reveals minor differences between the two polymorphs, with 1a exhibiting stronger C—H...S interactions and 1b favouring C—H...π interactions.

Synthesis and Structural Characterization of Copper(I) and Copper(II) Complexes with an Ambivalent Phenanthroline-Type Ligand

1997 ◽  
Vol 50 (10) ◽  
pp. 951 ◽  
Author(s):  
Jean-Paul Collin ◽  
Pablo Gaviña ◽  
Jean-Pierre Sauvage ◽  
André De Cian ◽  
Jean Fischer
Keyword(s):  
Cyclic Voltammetry ◽  
Structural Characterization ◽  
Monoclinic Space Group ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
Coordination Modes ◽  
X Ray Crystallography ◽  
Phenanthroline Ligand

The new phenanthroline ligand 2-(p-methoxyphenyl)-9-(5′-methylpyridin-2′-yl)-1,10-phenanthroline L has been synthesized and shown to form four-coordinate CuI(L)2 (1) and six-coordinate CuII(L)2 (2) complexes. Their structures have been determined by X-ray crystallography: (1) C50H38CuN6O2.BF4, triclinic, space group P -1, a12·924(3), b 14·567(4), c 12·649(3) Å , α 105·57(2), β 107·68(2), γ 104·00(2)°; (2) C50H38CuN6O2.2PF6, monoclinic, space group P 21/c, a 17·701(5), b 19·285(5), c 14·93(4) Å, β 98·20(2)°. In solution, cyclic voltammetry measurements indicate for the copper(I) and copper(II) complexes a very fast rearrangement of the pyridine substituent with the change of the oxidation state. Surprisingly, the X-ray data show two different coordination modes for the ligand around the copper(I) ion, the 1,10-phenanthroline nucleus being either mono- or bi-dentate. In solution, since the 1H n.m.r. spectra obtained even at several temperatures display only one set of signals, it is proposed that a fast equilibrium takes place between two coordination modes of the phenanthroline

Mono- and bis-(acetylacetonato) complexes of arene-ruthenium(II) and arene-osmium(II): variation of the binding mode of η1-acetylacetonate with the nature of the arene

2001 ◽  
Vol 79 (5-6) ◽  
pp. 655-669 ◽  
Author(s):  
Martin A Bennett ◽  
Thomas R Mitchell ◽  
Mark R Stevens ◽  
Anthony C Willis
Keyword(s):  
Binding Mode ◽  
Molecular Structures ◽  
Monoclinic Space Group ◽  
Electronic Effects ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
The Difference ◽  
Ruthenium Arene

The mono(acetylacetonato) complexes [MCl(O,O'-acac)(η6-arene)] (M = Ru, Os, arene = C6H6, 1,3,5-C6H3Me3, C6Me6; M = Os, arene = 1,2-C6H4Me2, 1,2,3-C6H3Me3), which are formed from [MCl2(η6-arene)]2 and thallium or sodium acetylacetonate, react with thallium acetylacetonate to give bis(acetylacetonato) complexes [M(O,O'-acac)(η1-acac)(η6-arene)]. The η1-acac ligand is bound through the gamma-carbon atom for M = Ru, Os, arene = C6H6; M = Os, arene = 1,2-C6H4Me2, 1,2,3-C6H3Me3 and through a keto-oxygen atom for M = Ru, Os, arene = 1,3,5-C6H3Me3, C6Me6, the difference being attributed to a combination of steric and electronic effects. Cationic ruthenium(II) derivatives [Ru(L)(O,O'-acac)(η6-arene]+ (arene = C6H6, 1,3,5-C6H3Me3, C6Me6; L = DMSO, MeCN, py, PPh3) and [Ru(CO)(O,O'-acac)(η6-arene]+ (arene = 1,3,5-C6H3Me3,C6Me6), and neutral osmium(II) η1-acetato derivatives [Os(η1-OAc)(O,O'-acac)(η6-arene)] (arene = C6H6, 1,2-C6H4Me2, 1,2,3-C6H3Me3, 1,3,5-C6H3Me3, C6Me6) are also described. The molecular structures of the following complexes have been determined by X-ray crystallography: [Os(O,O'-acac)(η1-C-acac)(η6-1,2-C6H4Me2)], triclinic, space group P[Formula: see text] (No. 2), a = 9.922(2), b = 9.974(2), and c = 11.001(2) Å, α = 68.33(1), β = 64.18(1), and γ = 62.38(1)°, V = 849.0(3) Å3, Z = 2; [Os(O,O'-acac)(η1-O-acac)(η6-1,3,5-C6H3Me3)], monoclinic, space group C2/c (No. 15), a = 16.032(4), b = 11.989(3), and c = 21.562(7) Å, β= 108.91(2)°, V = 3921(2) Å, Z = 8; [Os(η1-OAc)(O,O'-acac)(η6-C6H6)], triclinic, space group P[Formula: see text] (No. 2), a = 8.368(4), b = 8.402(4), and c = 11.008(4) Å, α = 71.68(3), β = 69.35(3), and γ = 69.77(3)°, V = 663.0(6) Å3, Z = 2.Key words: arene-ruthenium, arene-osmium, acetylacetone, crystal structures.

Addition von O- und C-Nucleophilen an Ruthenium-Schwefeldioxid-Komplexe, Struktur von [cpRu(dppm)(SO2Et)] / Addition of O- and C-Nucleophiles to Ruthenium Sulfur Dioxide Complexes, Structure of [cpRu(dppm)(SO2Et)]

1992 ◽  
Vol 47 (11) ◽  
pp. 1493-1500 ◽  
Author(s):  
Wolfdieter A. Schenk ◽  
Peter Urban ◽  
Thomas Stährfeldt ◽  
Eberhard Dombrowski
Keyword(s):  
Sulfur Dioxide ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
Donor Ability ◽  
Salient Features ◽  
Metal Fragment

Ruthenium-sulfur dioxide complexes [cpRu(PR3)2(SO2)]Cl ((PR3)2 = (PPh3)2, Ph2PCH2PPh2(dppm), Ph2PC2H4PPh2(dppe)) add alkoxide to give sulfito complexes [cpRu(PR3)2(SO2OR′)] (R′ = Me, Et, /Pr). Reactions of [cpRu(dppm)(SO2)]Cl with LiR′ (R′ = Me, Bu, Ph), MgBrR′ (R′ = Et, CH=CH2) or ZnEt2 give sulfinato complexes [cpRu(dppm)(SO2R′)]. The structure of [cpRu(dppm)(SO2Et)] was determined by X-ray crystallography: Crystals are triclinic, space group P1̄, a = 11,008(1), b = 15,998(6), c = 17,813(2) Å, α = 92,30(2), β = 93,916(8), γ = 107,54(2)°, Z = 4. Salient features are a short Ru-S bond and relatively long S-O bonds which attest to the high π-donor ability of the pseudo-tetrahedral metal fragment.

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