Metal to ligand charge-transfer photochemistry of metal-metal-bonded complexes. 6. Photochemistry of Ph3SnM(CO)3(.alpha.-diimine) (M = Mn, Re): evidence for different primary photoprocesses of the manganese and rhenium complexes

Andréa, R. R.; Lange, Wim G. J. de; Stufkens, Derk J.; Oskam, A.

doi:10.1021/ic00301a033

Cited by 35 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pioneering studies by Stufkens and co-workers ,− and Hartl and co-workers , demonstrated that the fac - 1 -(CO)(X) ( 1 = Mn(bpy)(CO) 2 , bpy = 2,2′-bipyridyl, X = halide ion) and related diimine complexes have a rich photochemistry. It was determined that UV irradiation in weakly coordinating solvents resulted in fac → mer photoisomerization and concurrent formation of the dimeric species, [ 1 -(CO)] 2 , formed upon homolysis of the Mn–X bond.…”

Section: Introductionmentioning

confidence: 99%

Ancillary Ligand Effects upon the Photochemistry of Mn(bpy)(CO)₃X Complexes (X = Br^–, PhCC^–)

et al. 2017

View full text Add to dashboard Cite

The photochemistry of two Mn(bpy)(CO)X complexes (X = PhCC, Br) has been studied in the coordinating solvents THF (terahydrofuran) and MeCN (acetonitrile) employing time-resolved infrared spectroscopy. The two complexes are found to exhibit strikingly different photoreactivities and solvent dependencies. In MeCN, photolysis of 1-(CO)(Br) [1 = Mn(bpy)(CO)] affords the ionic complex [1-(MeCN)]Br as a final product. In contrast, photolysis of 1-(CO)(CCPh) in MeCN results in facial to meridional isomerization of the parent complex. When THF is used as solvent, photolysis results in facial to meridional isomerization in both complexes, though the isomerization rate is larger for X = Br. Pronounced differences are also observed in the photosubstitution chemistry of the two complexes where both the rate of MeCN exchange from 1-(MeCN)(X) by THFA (tetrahydrofurfurylamine) and the nature of the intermediates generated in the reaction are dependent upon X. DFT calculations are used to support analysis of some of the experiments.

show abstract

Section: Introductionmentioning

confidence: 99%

Ancillary Ligand Effects upon the Photochemistry of Mn(bpy)(CO)₃X Complexes (X = Br^–, PhCC^–)

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Further studies on this type of complex has led to a different assignment. Raman spectra showed resonance enhancement of intensity for a symmetrical CO stretching vibration, a feature that strongly indicated the presence of metal (d~,) to ligand (~-*) charge transfer (MLCT) transitions [12]. The UV-Vis data confirmed this assignment, since the considerable solvatochromism and high extinction coefficients were not in line with the above assignment to a ~rb ~ rr* transition.…”

Section: Introductionmentioning

confidence: 90%

Synthesis, structure and spectroscopic properties of novel metal-metal bonded manganese-ruthenium complexes with α-diimine ligands. X-ray structure of [(CO)5MnRu(Me)(CO)2(σ(N′)-iPr-PyCa)] (iPr-PyCa = pyridine-2-carbaldehyde-N-isopropylimine)

Nieuwenhuis

Loon

Moraal

et al. 1995

Inorganica Chimica Acta

Self Cite

View full text Add to dashboard Cite

Synthesis, structure and spectroscopic properties of novel metal-metal bonded manganese-ruthenium complexes with alpha-diimine ligands. X-ray structure of [(CO)5Mn-Ru(Me)(CO)2(sigma(N')-iPr-PyCa)](iPr-PyCa = pyridine-2-carbaldehyde-Nisopropylimine) Nieuwenhuis Oskam, A., & Goubitz, K. (1995). Synthesis, structure and spectroscopic properties of novel metal-metal bonded manganese-ruthenium complexes with alpha-diimine ligands. X-ray structure of [(CO)5Mn-Ru(Me)(CO)2(sigma(N')-iPr-PyCa)](iPr-PyCa = pyridine-2-carbaldehyde-N-isopropylimine). Inorganica Chimica Acta, 232, 19-25. DOI: 10.1016/0020-1693(94)04360-8 General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Synthesis, structure and spectroscopic properties of novel metal-metal bonded manganese-ruthenium complexes with t -diimine ligands. X-ray structure of [(CO)sMn-Ru(Me) (CO)a(a(N),a(N') Received 4 July 1994; revised 6 September 1994 AbstractThe synthesis and spectroscopy of the complexes [(CO)sMn-Ru(Me)(CO)2(a-diimine)] (a-diimine=N,N'-diisopropyl-l,4-diaza-l,3-butadiene (iPr-DAB), pyridine-2-carbaldehyde-N-isopropylimine (iPr-PyCa)) are reported. The metal fragments are bonded to each other by an uncommon manganese-ruthenium bond. The single crystal X-ray structure has been determined. The purple crystals of [(CO)sMn-Ru(Me)(CO)2(iPr-PyCa)] are monoclinic, space group P21/n, Z=4, with unit cell dimensions a = 9.6297(7), b = 20.923(1), c = 10.166(1) ~ and fl = 92.190(8) °. The structure refinement converged to R = 0.035 for 3277 observed reflections. Both complexes show a strong, solvatochromic absorption band in the visible region, which is assigned to Ru (d,~)~a-diimine (~-*) transitions. In agreement with this assignment, the Raman spectra show resonance enhancement of Raman intensity for vs(CO) and vs(CN) of the Ru(Me)(CO)2(a-diimine) fragment.

show abstract

“…C2Sn and W(CO)s units are linked by a μ-η -SA unit with two S atoms bonded to tin (pseudo-tetrahedral SnC2S2) and one S atom to tungsten (pseudo-octahedral WCsS). 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]. A cyclopentadie /I ligand serves as a bridge between PluSn and W(CO)2(PhC) moieties in a final example for which little structural information is given [79].…”

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

confidence: 99%

“…Α μ-η 3 -ΟΡ(ΟΕ02ΡΡ(ΟΕ02θ ligand connects CISn and W(CO)s [95] using two Ο atoms to tin (SnChCl) and a Ρ atom to tungsten (WCsP). All but the last two have a direct Sn-Mn bond ranging from 250.8(3) pm [94] to 270(1) pm [103]. 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].…”

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

confidence: 99%

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

Holloway¹,

Melnı́k²

2001

Main Group Metal Chemistry

View full text Add to dashboard Cite

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...

show abstract

Metal to ligand charge-transfer photochemistry of metal-metal-bonded complexes. 6. Photochemistry of Ph3SnM(CO)3(.alpha.-diimine) (M = Mn, Re): evidence for different primary photoprocesses of the manganese and rhenium complexes

Cited by 35 publications

References 0 publications

Ancillary Ligand Effects upon the Photochemistry of Mn(bpy)(CO)₃X Complexes (X = Br^–, PhCC^–)

Ancillary Ligand Effects upon the Photochemistry of Mn(bpy)(CO)₃X Complexes (X = Br^–, PhCC^–)

Synthesis, structure and spectroscopic properties of novel metal-metal bonded manganese-ruthenium complexes with α-diimine ligands. X-ray structure of [(CO)5MnRu(Me)(CO)2(σ(N′)-iPr-PyCa)] (iPr-PyCa = pyridine-2-carbaldehyde-N-isopropylimine)

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

Contact Info

Product

Resources

About

Metal to ligand charge-transfer photochemistry of metal-metal-bonded complexes. 6. Photochemistry of Ph3SnM(CO)3(.alpha.-diimine) (M = Mn, Re): evidence for different primary photoprocesses of the manganese and rhenium complexes

Cited by 35 publications

References 0 publications

Ancillary Ligand Effects upon the Photochemistry of Mn(bpy)(CO)3X Complexes (X = Br–, PhCC–)

Ancillary Ligand Effects upon the Photochemistry of Mn(bpy)(CO)3X Complexes (X = Br–, PhCC–)

Synthesis, structure and spectroscopic properties of novel metal-metal bonded manganese-ruthenium complexes with α-diimine ligands. X-ray structure of [(CO)5MnRu(Me)(CO)2(σ(N′)-iPr-PyCa)] (iPr-PyCa = pyridine-2-carbaldehyde-N-isopropylimine)

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

Contact Info

Product

Resources

About

Ancillary Ligand Effects upon the Photochemistry of Mn(bpy)(CO)₃X Complexes (X = Br^–, PhCC^–)

Ancillary Ligand Effects upon the Photochemistry of Mn(bpy)(CO)₃X Complexes (X = Br^–, PhCC^–)