Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 35. The synthesis and crystal structures of the compounds [N(PPh3)2][W2{µ-C(H)C6H4Me-4}(CO)7(η-C5H5)]·0.5 Et2O and [W{C(H)C6H4Me-4}(SnPh3)(CO)2(η-C5H5)]

Hodgson, D.; Howard, Judith A. K.; Stone, F. Gordon A.; Went, Michael J.

doi:10.1039/dt9850001331

Cited by 14 publications

(7 citation statements)

References 6 publications

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“…) 1621(4) 3 151(6) 3 497(5) 3 455 (5) 1 400 (5) 3 970(4) 1853 (6) 2 277 (5) 1919 (5) 1438( 4) 1892(5) 1 511 (5) 668( 5) 221( 5) 589( 4) 245 ( The solution changed in colour from yellow to red-orange, and was stirred (5 min) before addition of [N(PPh,),]Cl (0.23 g, 0.40 mmol). After warming to room temperature, solvent was removed in uacuo.…”

Section: Preparation Of the Compoundmentioning

confidence: 99%

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 40. Transformation of terminally bound alkylidyne ligands to µ-alkylidene, µ-vinyl, µ-alkyl, and µ-aryl groups at a bimetal centre; X-ray crystal structures of [N(PPh₃)₂][ReW(µ-CHR)(CO)₉], [ReW(µ-CH₂R)(µ-Me₂PCH₂PMe₂)(CO)₇], and [ReW(µ-OCCH₂R)(µ-Ph₂PCH₂PPh₂)(CO)₆{P(OMe)₃
Jeffery¹,
Orpen²,
Stone³
et al. 1986
J. Chem. Soc., Dalton Trans.
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BS8 I TS Treatment of the complexes [ReM(sCR) (CO),] in tetrahydrofuran (thf) with K[BH(CHMeEt),], followed by addition of [N(PPh,),]CI affords the salts [N(PPh,),] [ReM(p-CHR)(CO),] (M = Cr, Mo, or W, R = C,H,Me-4; M = W, R = Me). The structure of one of these species ( M = W, R = C,H,Me-4) was determined by X-ray diffraction. In the anion, the Re-W bond [3.033(1) A] is asymmetrically spanned by the p-CH(C,H,Me-4) group [p-C-Re 2.1 55(8), p-C-W 2.404(6) A]. The rhenium atom is ligated by four CO groups and the tungsten by five of these ligands. On warming in thf solution, the bridged ethylidene complex [N (PPh,),] [ ReW(p-CH Me) (CO),] releases CO and converts to the hydrido-and vinyl-bridged salt [N(PPh,),] [ReW(p-H) (p-CH=CH,)(CO),]. Treatment of the compounds [N ( PPhJ,] [ ReM{p-CH ( C6H,Me-4)}(C0),] with the bidentate phosphines R' ,PCH,PR' , (R' = Ph or Me) affords the complexes [N( PPh,),] [ R e M { p C H -(C,H,Me-4)}(p-R',PCH2PR',) (CO),] ( M = W, R' = Ph; M = Cr, Mo, or W, R' = Me). The rheniumtungsten species on protonation (H BF,*Et,O) afford complexes [ ReW(p-CH,C,H,Me-4) -(p-R' ,PCH,PR' ,) (CO),] in which the p-tolylmethyl group asymmetrically bridges the metal-metal vector, being o-bonded to the rhenium and co-ordinated to the tungsten by a three-centre, two-electron C-H-W bond. This result, strongly indicated by 'H and l3C-{'H} n.m.r. data, was confirmed by an X-ray diffraction study on the Me,PCH,PMe, derivative [p-C-Re 2.302(7), p-C-W 2.539(7) A]. The Re-W vector [2.950(2) A] is also spanned by the Me,PCH,PMe, ligand and a strongly semi-bridging carbonyl attached t o the tungsten [W-C-0 153.6(6)"]. The Me,PCH,PMe, and CH,C,H,Me-4 groups are cisoid in the bridge system. The rhenium and tungsten atoms each carry three terminally bound CO ligands. Several reactions of the bridged p-tolylmethyl rheniumtungsten compounds have been investigated, that between [ ReW(p-CH,C,H,Me-4) -(p-Ph,PCH,PPh,) (CO),] and P(OMe), affording the complex [ ReW(p-OCCH2C,H,Me-4) -(p-Ph,PCH,PPh,) (CO),{P(OMe),}], the structure of which was established by X-ray diffraction. In this compound the Re-W bond [3.155(1) A] is bridged by the Ph,PCH,PPh, ligand and by the acyl group [Re-C 2.1 67(8), W-0 2.206(5) A]. The rhenium atom carries three terminally bound CO groups and the tungsten two. A further CO ligand on tungsten semi-bridges the Re-W bond [W-C-0 157.0(6) A], the tungsten being also ligated by the P(OMe), group. The Ph,PCH,PPh, and acyl groups in the bridge system are cisoid. The n.m.r. spectra (lH, 13C-{lH}, and "P-{'H}) of the new compounds are reported and discussed. I ' jc (6)

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Section: Preparation Of the Compoundmentioning

confidence: 99%

Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 40. Transformation of terminally bound alkylidyne ligands to µ-alkylidene, µ-vinyl, µ-alkyl, and µ-aryl groups at a bimetal centre; X-ray crystal structures of [N(PPh₃)₂][ReW(µ-CHR)(CO)₉], [ReW(µ-CH₂R)(µ-Me₂PCH₂PMe₂)(CO)₇], and [ReW(µ-OCCH₂R)(µ-Ph₂PCH₂PPh₂)(CO)₆{P(OMe)₃
Jeffery¹,
Orpen²,
Stone³
et al. 1986
J. Chem. Soc., Dalton Trans.
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“…There are nineteen derivatives which contain tin and tungsten atoms together [57,68,[79][80][81][82][83][84][85][86][87][88][89][90][91][92]. In fifteen of these the tin and tungsten have a direct bond with bond distances ranging from 270.…”

Section: Figure 2 Structure Of [Chbusn^-v-s2cpcy 3 )([I-cimo(co)2(pcmentioning

confidence: 99%

“…In fifteen of these the tin and tungsten have a direct bond with bond distances ranging from 270. 7(1) pm [90], with an average value of 278 pm. 7(1) pm [90], with an average value of 278 pm.…”

Section: Figure 2 Structure Of [Chbusn^-v-s2cpcy 3 )([I-cimo(co)2(pcmentioning

confidence: 99%

“…6(1) pm [80] to 283. The tin stereochemistry varies from trigonal-planar [83,93] [57,[79][80][81][82][84][85][86][88][89][90][91][92], trigonal-bipyramidal [81,82,87] to pseudo-octahedral [68], The tungsten environments include pseudo-octahedral [57,[81][82][83]86,87], seven-coordinate [84,85,89], semi-sandwiched [68,88,90] and sandwich [80]. The tin stereochemistry varies from trigonal-planar [83,93] [57,[79][80][81][82][84][85][86][88][89][90][91][92], trigonal-bipyramidal [81,…”

Section: Figure 2 Structure Of [Chbusn^-v-s2cpcy 3 )([I-cimo(co)2(pcmentioning

confidence: 99%

“…Twenty examples are found for Group VIIB, starting with thirteen tin plus manganese derivatives [94][95][96][97][98][99][100][101][102][103][104][105]. Manganese is mostly pseudo-octahedral (MnCsS) [95][96][97][90][91][92][93][94][95][96][97][98][99][100][101][102], with only two derivatives having a semi-sandwich arrangement [94,98]. All but one of the examples has a pseudo-tetrahedral tin atom (SnY3Mn, where Y = S, CI or C), it has a trigonalbipyramidal environment [98].…”

Section: Figure 2 Structure Of [Chbusn^-v-s2cpcy 3 )([I-cimo(co)2(pcmentioning

confidence: 99%

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Heterometallic Tin Compounds: Classification and Analysis of Crystallographic and Structural Data: Part 1. Dimeric Derivatives

Holloway¹,

Melnı́k²

2001

Main Group Metal Chemistry

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This review covers the crystallographic data for dimeric tin compounds with one other metal atom centre, following the pattern of the previous reviews on tin coordination and organometallic compounds. Over two hundred and forty such derivatives have been characterised, twenty three with a non-transition heterometal atom, one with an actinide metal and the rest with a transition metal atom. The predominant geometries of the tin and the heteroatom are discussed along with the relationships between atom size, bond distances and bond angles. The occurrences of direct metal-metal bonds, and examples of isomerism are illustrated CONTENTS 0. ABBREVIATIONS 1. DIMERIC COMPOUNDS 2.1 Α-Group (Non-Transition) MetalsCrystallographic and structural data for some twenty three tin heterometallic compounds with sub-group A. or non-transition metals, are summarised in Table 1. These are listed in their Periodic Group order, with the typical metals of each group first, and then the Sn-M distance. The first eight derivatives contain tin with lithium [6][7][8][9][10][11][12][13], with the tin in the +2 oxidation state and lithium in its usual +1 oxidation state. The shortest Sn-Li bond 136 Brought to you by | Purdue University Libraries Authenticated Download Date | 6/11/15 11:28 PM Main Group Metal Chemistry Vol. 24, Nr. 3, 2001 distance is found in a yellow derivative [6] at 277.6(4) pm. Here, three Ph(Bu')CN ligands bridge the lithium and tin atoms via their Ν atoms, with Sn-N-Li bridge angles of 81,5( 1A slightly longer Sn-Li distance of 278.4(4) pm is found in a cyclometalated dimer [7] leid together by bridging Ο atoms of three 2,6diphenylphenoxide ligands, with mean Sn-O-Li bridge angles of 84.5(2)°.Two crystallographically independent molecules within the asymmetric units of Ph3SnLi(pmdeta) [8] differ essentially by degree of distortion. While the Sn(II) atom is coordinated by three phenyl groups, the Li(I) atom utilises the tridentate pmdeta moiety. Four coordination is accomplished by each metal via a direct Sn-Li bond of 286.1(7) and 288.2(7) pm in the respective distortion isomers. Another colourless derivative [9] also contains two crystallographically independent molecules. A direct Sn-Li bond of 289(4) and 297(5) pm, respectively, hold together the N3Sn and LiCb moieties.A lithium atom in the next derivative [ 10] ties two amido groups together to generate an N-donor arrangement which forms part of the N3Sn pyramid, one corner of which is the Sn(II) atom. The structure of a red derivative [11] involves a {(Me3Si)3}2Sn unit coordinated to a LiCl(thf)3 moiety via a chlorine bridge. The tricoordinated Sn(II) atom is also at one corner of a pyramid. A tricoordinated tin atom is also found in a metallocyclic arrangement [12] of a four membered (Sn-P-Li-P) ring with average Sn-P-Li angles of 89.5(7)°.The Sn centre in a sandwich style complex [13] is attached to two distorted η-cp ligands and the planar Ν atom of a (Me3Si)2N group, as seen in Figure 1. The tin atom has a distorted pyramidal geometry, and the cp(Y) ligand h...

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ChemInform Abstract: CHEMISTRY OF DI‐ AND TRIMETAL COMPLEXES WITH BRIDGING CARBENE OR CARBYNE LIGANDS. PART 35. THE SYNTHESIS AND CRYSTAL STRUCTURES OF THE COMPOUNDS BIS(TRIPHENYLPHOSPHINE)IMINIUM HEPTACARBONYL‐2‐η‐CYCLOPENTADIENYL‐μ‐P‐TOLYLMETHYLENEDITUNGSTATE AND DICARBONYL(η‐CYCLOPENTADIENYL)(P‐TOLYLMETHYLENE)TRIPHENYLSTANNYLTUNGSTEN

Hodgson¹,

Howard²,

Stone³

et al. 1985

Chemischer Informationsdienst

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Chemistry of di- and tri-metal complexes with bridging carbene or carbyne ligands. Part 35. The synthesis and crystal structures of the compounds [N(PPh₃)₂][W₂{µ-C(H)C₆H₄Me-4}(CO)₇(η-C₅H₅)]·0.5 Et₂O and [W{C(H)C₆H₄Me-4}(SnPh₃)(CO)₂(η-C₅H₅)]

Cited by 14 publications

References 6 publications

Heterometallic Tin Compounds: Classification and Analysis of Crystallographic and Structural Data: Part 1. Dimeric Derivatives

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