13007-92-6Relevant articles and documents
Podall, H. E.,Dunn, J. H.,Shapiro, H.
, p. 1325 - 1330 (1960)
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Fischer,E.O. et al.
, p. P29 - P32 (1969)
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Elementary Arrhenius Parameters in the CO-for-Ethylene Dissociative Substitution of Cr(CO)5(C2H4)
McNamara, Bruce,Becher, Dawn M.,Towns, Marcy H.,Grant, Edward R.
, p. 4622 - 4626 (1994)
Gas-phase samples of Cr(CO)5(C2H4) are prepared in situ by laser irradiation of quantitative mixtures of Cr(CO)6, CO, and C2H4.In the presence of CO and C2H4, Cr(CO)5(C2H4) decays thermally to re-form Cr(CO)6 by the mechanism of dissociative substitution.Systematic study of the rate of this reaction as a function of partial pressures of CO and C2H4 yields the elementary high-pressure limiting thermal rate constant for unimolecular dissociation of Cr(CO)5(C2H4) (k1) and the relative constant for recombination of Cr(CO)5 with CO and C2H4 (k2/k3).Measurements of k1 and k2/k3 extended over a range of precisely controlled temperatures determine Arrhenius parameters reflecting energetic and statistical properties of these elementary rate processes.
Siliciumhaltige Carben-Komplexe IX. Thermische Fragmentierung von Alkoxy(triphenylsilyl)carben-Komplexen, (CO)5MC(OR)SiPh3 (M=Cr, Mo, W)
Schubert, Ulrich,Hoernig, Hannelore
, p. 307 - 316 (1987)
On thermolysis of (CO)3M=C(OEt)SiPh3 (M=W, Mo, Cr) in the solid state or in solution three different decomposition pathways are observed, which are unusual for Fischer-type carbene complexes; fragmentation of the complex to give triphenylsilane, ethylene
McIntyre, J. A.
, p. 2403 - 2404 (1970)
Synthesis, structure, and reactivity of cyclic (arene)chromium carbene complexes
Merlic, Craig A.,Xu, Daqiang,Khan, Saeed I.
, p. 412 - 418 (1992)
In contrast to benzannulation products obtained by photolysis, thermolysis of the chromium carbene complexes [(1,1′-biphenyl-2-yl)methoxymethylene]pentacarbonylchromium (1) and [(1,1′-biphenyl-2-yl)(dimethylamino)methylene]pentacarbonylchromium (4) provide the new cyclic arene carbene complexes {[(1′,2′,3′,4′,5′,6′-η)-1,1′- biphenyl-2-yl]methoxymethylene}dicarbonylchromium (3) and {[(1′,2′,3′,4′,5′,6′-η)-1,1′- biphenyl-2-yl](dimethylamino)methylene}dicarbonylchromium (5). The 13C NMR spectra of these new complexes have unusually high-field-shifted and low-field-shifted signals for the carbene and carbonyl carbon resonances, respectively. The complexes are remarkably stable and do not show the high electrophilic behavior typical of Fischer carbene complexes. A new protocol for the aminolysis of Fischer carbene complexes is reported. The structure of complexes 3 and 5 were determined by single-crystal X-ray diffraction studies. 3 crystallizes in the monoclinic space group C2/c with unit cell dimensions a = 16.154 (2) A?, b = 12.256 (2) A?, c = 15.575 (2) A?, and β = 122.92 (1)°, with Z = 8. 5 crystallizes in the monoclinic space group P21/n with unit cell dimensions a = 11.47 (1) A?, b = 7.082 (7) A?, c = 20.87 (2) A?, and β = 108.13 (2)°, with Z = 4. The structures were refined by full-matrix least-squares procedures to final R = 0.028 and Rw = 0.050 for 2074 unique observed reflections for 3 and R = 0.066 and Rw = 0.101 for 1580 unique observed reflections for 5.
Time-Resolved IR Study of Gas-Phase Reaction of Benzene with Group VIB Metal Pentacarbonyls and Tetracarbonyls
Wang, Wenhua,Zheng, Youfeng,Lin, Jingu,She, Yongbo,Fu, Ke-Jian
, p. 11921 - 11928 (1993)
The gas-phase reactions of benzene and deuterated benzene (benzene-d6) with group VIB metal pentacarbonyls M(CO)5 (M=Cr and W) and tetracarbonyl W(CO)4 were probed with time-resolved infrared spectroscopy.Benzene reacts with M(CO)5 forming presumably (η2-benzene)M(CO)5 in which benzene coordinates to the metal via an isolated double bond.The rate constants for reactions of C6H6 and C6D6 with Cr(CO)5 were found to be (3.0 +/- 0.7) and (3.3 +/- 0.2) x 1013 cm3 mol-1 s-1, respectively.The corresponding values with W(CO)5 are (2.8 +/- 0.4) and (3.5 +/- 0.6) x 1013 cm3 mol-1 s-1.From the temperature dependence of the rate of dissociative loss of benzene from (η2-benzene)Cr(CO)5, a bond dissociation energy of 9.2 +/- 0.8 kcal mol-1 was determined for (η2-benzene)Cr(CO)5.The lower limit for bond dissociation energy for loss of the benzene ligand from (η2-benzene)W(CO)5 was estimated to be 11.7 kcal mol-1.Benzene reacts with W(CO)4 producing a species, presumably (η2-benzene)W(CO)4, which is stable in the milisecond time scale.The rate constants for reactions of C6H6 and C6D6 with W(CO)4 were determined to be (3.5 +/- 0.2) and (4.1 +/- 0.4) x 1013 cm3 mol-1 s-1, respectively.Secondary addition of CO to (η2-benzene)W(CO)4 forms (η2-benzene)W(CO)5, and the rate constants are (9.4 +/- 0.9) and (8.7 +/- 1.0) x 1011 cm3 mol-1 s-1, respectively, for additions of CO to (η2-C6H6)W(CO)4 and (η2-C6D6)W(CO)4.
Preparation and properties of some new cobalt and chromium carbonyl derivatives of 1,4-bis(dimethylsilyl)benzene
Mance,Miro,Van Dyke,Viswanathan
, p. 635 - 637 (1981)
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Ercoli, R.,Guainazzi, M.,Silvestri, G.
, (1967)
Matrix isolation study into the mechanism of photoinduced cyclization reactions of chromium carbenes
Gallagher, M. Louise,Greene, J. Barry,Rooney, A. Denise
, p. 5260 - 5268 (1997)
The complex (CO)5Cr[C(OMe)(Me)] is known to react photochemically with N-benzyli-denemethylamine (CH3NC(Ph)H) to form a β-lactam (1,3-dimethyl-3-methoxy-4-phenyl-2-azetidinone), whereas our study shows that (CO)5W[C(OMe)(Me)] does not. Irradiation of the complexes in argon and nitrogen matrices (λ > 390 nm) resulted in a geometrical isomerization and the trapping of the syn isomers. There was no evidence from the matrix isolation experiments for the formation of a metal-ketene complex, a likely intermediate in the solution photochemistry of (CO)5Cr[C(OMe)(Me)] with respect to β-lactam formation. Three differences were observed in the matrix and solution photochemistry of (CO)5Cr-[C(OMe)(Me)] and (CO)5W[C(OMe)(Me)]. (i) (CO)5Cr[C(OMe)(Me)] undergoes CO loss upon irradiation with UV light more readily than its tungsten analogue, (ii) Upon UV irradiation of (CO)5Cr[(C(OMe)(Me)] in a nitrogen matrix bands were observed in the IR spectrum which indicated that two (CO)4(N2)Cr[C(OMe)(Me)] isomers were formed, whereas irradiation of (CO)5W[C(OMe)(Me)] under the same conditions produced only one nitrogen adduct. (iii) Irradiation of (CO)5Cr[C(OMe)(Me)] in solution and in a solid CO matrix showed that this complex underwent loss of the carbene ligand more readily than the tungsten analogue. These findings are consistent with the proposal that, upon irradiation of chromium carbenes, a ketene transient could be formed by a cleavage of the chromium-carbene σ bond and intramolecular nucleophilic attack by the carbene on a metal carbonyl. The photochemistry of the complex (CO)5Cr(OMeXbiphenyl) was studied in both argon and nitrogen matrices. This complex underwent CO loss very readily, and it is likely that this step is involved in at least one pathway of its solution photochemistry.
Photoinduced Se-C insertion following photolysis of (η5- C4H4Se)Cr(CO)3. A picosecond and nanosecond time-resolved infrared, matrix isolation, and DFT investigation
Brennan, Peter,George, Michael W.,Jina, Omar S.,Long, Conor,McKenna, Jennifer,Pryce, Mary T.,Sun, Xue-Zhong,Vuong, Khuong Q.
, p. 3671 - 3680 (2008)
The photochemistry of (η5;-C4H 4Se)Cr(CO)3 was investigated by matrix isolation, time-resolved infrared spectroscopy, and steady-state photochemical methods. Density functional theory (DFT) was used to assist in the identification of the photoproducts. Irradiation (λexc= 406 nm) of (η5-C4H4Se)Cr(CO)3 in either an Ar or CH4 matrix at 20 K produced the selenophene ring-opened insertion product (C,Se-C4H4Se)Cr(CO)3. Further irradiation of this matrix produced the CO-loss species (C,Se-C 4H4Se)Cr(CO)2. Pulsed irradiation at 400 nm produced the CO-loss species (η5-C4H 4Se)Cr(CO)2(S) in n-heptane (S) along with the insertion products (C,Se-C4H4Se)Cr(CO)3 and (C,Se-C 4H4Se)Cr(CO)2, both of which may have triplet character. Time-resolved measurements on the microsecond time scale confirmed that the CO-loss species (η5-C4H4Se)Cr(CO) 2(S) reacts with CO (k2 = 5.8 × 106 dm3 mol-1 s-1 at 298 K), while (C,Se-C4H 4Se)Cr(CO)3 and (C,Se-C4H4Se)Cr(CO) 2 do not react on this time scale. DFT calculations provide an explanation of the stability of the triplet (C,Se-C4H 4Se)Cr(CO)3 species in terms of a chromaselanabenzene structure, which is consistent with previously observed metal insertion into coordinated selenophene ligands.
Podall, H. E.,Prestridge, H. B.,Shapiro, H.
, p. 2057 - 2061 (1961)
An experimental determination of the Cr-DMB (DMB = 3,3-dimethyl-1-butene) bond energy in Cr(CO)5(DMB): Effects of alkyl substitution on chromium-olefin bond energies in Cr(CO)5(olefin) complexes
Cedeno, David L.,Weitz, Eric
, p. 4651 - 4660 (2002)
The chromium-olefin complex Cr(CO)5(DMB) (DMB = 3,3-dimethyl-1-butene) has been studied in the gas phase using transient infrared spectroscopy. This complex forms by addition of DMB to photogenerated Cr(CO)5 with a rate constant, kL = (7.0 ± 1.5) × 10-11 cm3 molecule-1 s-1. The bond enthalpy for the DMB-Cr(CO)5 bond has been determined from the kinetics for the decay of Cr(CO)5(DMB) to be 20.1 ± 1.7 kcal/mol at 298 K. An energy decomposition analysis has been performed for a series of Cr(CO)5(olefin) complexes (olefin = DMB, ethylene, propene, 1-butene, 1-hexene, cis-2-butene, trans-2-butene, isobutene, and tetramethylethylene (TME)) using density functional theory. These calculations provide insights into trends in the chromium-olefin bond energy. The results reveal that the trend in bond energies in these complexes correlates with the number and the nature of the alkyl groups around the double bond, and that the dominant factor in this trend is the deformation energy of the olefin and Cr(CO)5, where the deformation energy is the energy required to deform the olefin ligand and the unsaturated metal centered moiety from their isolated ground-state geometries to the geometry they adopt in the bound complex.
THE EFFECT OF REPLACING CARBONYL GROUPS BY OTHER LIGANDS ON THE CATALYTIC PROPERTIES OF ARENECHROMIUM CARBONYL COMPLEXES
Dabard, R.,Jaouen, G.,Simonneaux, G.,Cais, Michael,Kohn, D.H.,et al.
, p. 91 - 101 (1980)
The activities of a series of areneCr(CO)2L complexes in catalytic hydrogenation has been studied and found to be poorer than those of the Cr(CO)3 analogs.The IR ν(CO) changes of these complexes in THF have been shown to have value in predicting catalytic properties.
Unprecedented allenylidene transfer from chromium to tungsten
Szesni, Normen,Drexler, Matthias,Fischer, Helmut
, p. 3989 - 3995 (2006)
Pyrimidylallenylidene complexes 1 ([(CO)5M=C=C=C(NC 3H3NEt)]; M = Cr (a), W (b)) were prepared in a one-pot procedure from readily available 2-ethynylpyrimidine, butyllithium, [(CO) 5M-(THF)], and triethyloxonium tetrafluoroborate. In addition to 1a,b, the homobinuclear allenylidene complexes 2a,b ([(CO)5M=C=C= C(NC3H3NEt)M(CO)5]; M = Cr, W) were formed. In 2a,b the second (CO)5M moiety is attached to the nonalkylated nitrogen atom of the pyrimidyl ring. Treatment of the chromium complex la with an excess of [(CO)5W(THF)] afforded the tungsten allenylidene complex 2b by transmetalation of the allenylidene ligand and addition of (CO) 5W. The allenylidene ligands of other chromium allenylidene complexes [(CO)5Cr=C=C=C(R1)R2] could likewise be transferred to tungsten. In contrast, the reverse transmetalation from tungsten to chromium could not be achieved. DFT calculations indicate that the reaction proceeds by an associative rather than a dissociative pathway. The initiating reaction step is coordination of a (CO)5W fragment to the C α-Cβ bond of the allenylidene ligand.
Oezer, Zahide,Oezkar, Saim,Oenal, Ahmet M.
, p. 281 - 284 (1989)
Hydroquinoid chromium complexes bearing an acyclic conjugated bridge: Chromium-templated synthesis, molecular structure, and haptotropic metal migration
Hegele, Peter,Santhamma, Bindu,Schnakenburg, Gregor,Froehlich, Roland,Kataeva, Olga,Nieger, Martin,Kotsis, Konstantinos,Neese, Frank,Doetz, Karl Heinz
, p. 6172 - 6185 (2010)
The naphthohydroquinoid tricarbonyl chromium complexes 3 and 6, bearing a styryl or phenylazo moiety, have been synthesized and studied for the haptotropic metal migration along the extended π-system. Quantum chemical calculations suggested a feasible stepwise rearrangement of the Cr(CO) 3 fragment from the hydroquinoid to the other terminal phenyl ring for the azo- rather than for the ethene-bridged system. An experimental and kinetic study of the ethene-bridged complex 3 revealed a haptotropic metal shift onto the adjacent naphthalene ring to give isomer 7 and suggested a competing intermolecular decomplexation-recomplexation pathway for the coordination of the terminal phenyl ring, affording bismetalated complexes 8 and 9. Attempts of a controlled metal migration in the azo complex analogue 6 under similar conditions were unsuccessful and resulted in partial decomposition.
Diversity and design of metal-based carbon monoxide-releasing molecules (CO-RMs) in aqueous systems: Revealing the essential trends
Zhang, Wei-Qiang,Atkin, Anthony J.,Thatcher, Robert J.,Whitwood, Adrian C.,Fairlamb, Ian J. S.,Lynam, Jason M.
, p. 4351 - 4358 (2009)
The CO-releasing ability of a diverse library of primary metal carbonyl complexes has been assessed using a deoxymyoglobin-carbonmonoxymyglobin assay. A wide spectrum of rates for the CO-release process was observed in aqueous systems. For octahedral dsu
Intermetallic Communication through Carbon Wires in Heterobinuclear Cationic Allenylidene Complexes of Chromium
Szesni, Normen,Drexler, Matthias,Maurer, Joerg,Winter, Rainer F.,De Montigny, Frederic,Lapinte, Claude,Steffens, Stefan,Heck, Juergen,Weibert, Bernhard,Fischer, Helmut
, p. 5774 - 5787 (2006)
The reaction of [(CO)5M(THF)] (M = Cr, W) with lithiated 2-ethynylquinoline followed by alkylation of the resulting alkynylpentacarbonylmetalate with [R3O]BF4 (R = Me, Et) gives allenylidene complexes in which the terminal carbon atom of the allenylidene chain is part of an N-alkylated quinoline ring. The reaction of [(CO)5M(THF)] (M = Cr, W) with lithiated 2-ethynylpyridine derivatives, Li[C≡CC5H4BrN], and [Et 3O]BF4 affords allenylidene complexes that contain a terminal six-membered N-heterocycle brominated at the 5- or 6-position. Various alkynyl groups can be introduced into the 5-position of the ring through [PdCl2(PPh3)2] -catalyzed coupling of the 5-bromo-substituted allenylidene complexes with the terminal alkynes HC≡CR′ (R′ = TMS, Ph, C10H21, 4-C 6H4-C≡CPh, 4-C6H4-C≡CH, Fc (Fc = (C5H4,)FeCp), 4-C6H4-C=CFc, 4-C 6H4-C≡CC6H4C≡CFc). The analogous replacement reaction of the 6-bromo-substituted chromium complex with HC≡CFc yields the corresponding 6-ferrocenylalkynyl-substituted complex. Desilylation of [(CO)5Cr=C=C=C(CH)2C(C≡CSiMe 3)CHNEt] (6a) gives [(CO)5Cr=C=C= C(CH) 2C(C=CH)CHNEt] (15a). CuI-catalyzed coupling of 15a with {M}-Br ({M} = Ru(CO)2Cp, Fe-(CO)2Cp*) affords the binuclear complexes [(CO)5Cr=C=C=C(CH)2C(C=C-{M})CHNEt]. The symmetrical binuclear complex is formed by oxidative coupling of 15a with [Cu(OAc) 2]. The attachment of a ferrocenyl group to the chromium center via PPh2 to give cis-[(CO)4(Ph2PFc)Cr=C=C=C(CH) 4NEt] is achieved via displacement of a cis-CO ligand in [(CO) 5Cr=C=C=C(CH)4NEt] by PPh2Fc. On addition of Co2(CO)8 to [(CO)5Cr=C=C=C(CH) 2C(C=CPh)CHNEt] a Co2(CO)6 unit adds to the C≡C bond to form a trinuclear complex. The ferrocenyl unit in [(CO) 5Cr=C=C=C(CH)2C(C≡CR)CHNEt] (R = Fc, C 6H4C≡CFc, C6H4C≡CC 6H4C≡CFc) is readily oxidized. Spectroelectrochemical studies (IR, UV/vis) confirm that in the oxidized form there is strong electronic communication of the ferrocenyl group with the (CO)5Cr unit.
Px ligands with a maximum of electron-donating ability. VI. 4-P4)3>(Cp''=η5-C5H3tBu2-1,3), the product of the reaction between P4 and 2 in the presence of
Scheer, Manfred,Becker, Uta,Huffman, John C.,Chisholm, Malcolm H.
, p. C1 - C3 (1993)
The reaction of P4 with 2 in the presence of leads to 4-P4)3> (Cp''=η5-C5H3tBu2-1,3) (IUPAC formula 3(PH-1κP1,2κP2,3κP3)>(κ-P1,P2,P3,P4)>>) as a final product.An X-ray structural study reveals a complex with a planar cyclo-P4 ligand capped by a Cp''Co unit.Three of the phosphorus atoms are also coordinated to groups.
Structural and reaction chemistry of the open chromocene bis(2,4-dimethylpentadienyl)chromium
Newbound, Timothy D.,Freeman, Jeffrey W.,Wilson, David R.,Kralik, Michael S.,Patton, Alan T.,Campana, Charles F.,Ernst, Richard D.
, p. 2432 - 2437 (1987)
The reactivity of the open chromocene Cr(2,4-C7H11)2 (C7H11 = dimethylpentadienyl) has been investigated and found to parallel that of metal allyl complexes, such as Ni(C3H5)2. Thus, exposure to an excess of dmpe (Me2PC2H4PMe2) or t-C4H9NC brings about naked chromium reactions , leading to the formation of Cr(dmpe)3 and Cr(CN(t-C4H9))6, respectively, in good yields. With amine hydrochlorides and dmpe, one pentadienyl ligand may be removed, leading to the paramagnetic, 16-electron complex Cr(2,4-C7H11)(Cl)(dmpe), which could also be prepared from CrCl2(dmpe)2 and 1 equiv of K(2,4-C7H11). Reaction of the monochloride complex with LiCH3 leads to the formation of the analogous methyl complex. Structural determinations are reported for Cr(2,4-C2H11)2 and Cr(2,4-C7H11)(Cl)(dmpe). For Cr(2,4-C7H11)2, an open-sandwich structure was found, with the average Cr-C bond distance being 2.163 (3) ?, comparable to the value of 2.169 (4) ? for chromocene. The structure has been refined to agreement indices of R = 0.040 and Rw = 0.053 in space group D44-P43212 (No. 96) with a = b = 8.090 (1) ? and c = 20.847 (3) ? for Z = 4. For Cr(2,4-C7H11)(Cl)(dmpe), an unsymmetric piano-stool geometry was observed, in which one phosphorus atom is located under the open edge of the pentadienyl ligand, while the chlorine atom and other phosphorus atom are located under the formally uncharged C(2) and C(4) atoms of the pentadienyl ligand. The structure has been refined to agreement indices of R = 0.063 and Rw = 0.056 in space group D2h15-Pbca (No. 61) with a = 12.578 (2) ?, b = 12.117 (2) ?, and c = 23.094 (5) ? for Z = 8.
Giannini et al.
, p. 551 (1968)
Owen, B. B.,English, J.,Cassidy, H. G.,Dundon, C. V.
, p. 1723 - 1725 (1947)
Photochemistry of (η6-arene)Mo(CO)3 and the role of alkane solvents in modifying the reactions of coordinatively unsaturated metal carbonyl fragments
Breheny, Ciara J.,Kelly, John M.,Long, Conor,O'Keeffe, Siobhan,Pryce, Mary T.,Russell, Graham,Walsh, Margaret M.
, p. 3690 - 3695 (1998)
The reactions of (η6-arene)Mo(CO)2(Sol) and M(CO)5(Sol) with CO have been studied in a range of alkane solvents (Sol), and the kinetic and activation parameters have been determined (M = Cr, Mo, or W). For M = Cr the ΔH? is constant (22 ± 2 kJ mol-1), while the ΔS? term becomes less negative as the alkane chain length increases. For the larger metals the variation in kinetic and activation parameters is less significant. Solvent displacement by CO involves an interchange mechanism for the Cr system, while for Mo or W complexes the mechanism is more associative in character. The photochemistry of (η6-arene)Mo(CO)3 (arene = benzene, mesitylene, p-xylene, or hexamethylbenzene) compounds was investigated by laser flash photolysis, supported by matrix isolation and time-resolved infrared spectroscopy (TRIR). In contrast to the behavior to the analogous (η6-arene)Cr-(CO)3, it is found that the efficiency for photochemical expulsion of CO from (η6-mesitylene)-Mo(CO)3 is markedly wavelength dependent (ΦCO = 0.587, 0.120, and 0.053 at 266, 313, and 334 nm, respectively).
Siliciumhaltige Carben-Komplexe XII. Synthese kleiner organischer Ringsysteme aus alkoxy- oder alkylthio-substituirten Silylcarben-Komplexen (CO)5MC(XEt)SiR3 (M=Cr, Mo, W; X=O, S) und davon abgeleiteten Ketenen R3Si(EtX)C=C=O
Kron, Johanna,Schubert, Ulrich
, p. 203 - 220 (1989)
Ketenes R3Si(EtO)C=C=O (1), prepared in situ from the carbene complexes (CO)5MC(OEt)SiR3 (M=Cr, Mo, W) by reaction with CO, react with ethyl vinyl ether or cyclopentadiene by -cycloaddition.Two stereoisomeric cyclobutanone derivatives, in which the positions of the R3Si and the EtO group are interchanged, are obtained in each case.The reactions proceed with high stereoselectivity.Ethyl vinyl ether also reacts directly with the carbene complexes to yield a single stereoisomer of 1,2-diethoxy-1-silyl-cyclopropane (6).Reaction of the ethyl-thio-substituted ketene Ph3Si(EtS)C=C=O (2) with 2,3-dihydrofuran gives the corresponding cyclobutanone only as a by-product. 3-Oxa-8-silyl-1-thia-bicyclooctan-7-one (8) is formed as the main product by loss of an ethylene unit.Ketene 1 reacts with N-methyl- or N-phenylbenzimine, but not with cyclic imines, to give β-lactames.Each of these reactions also yields two stereoisomers.
Unusually slow photodissociation of CO from (η6-C 6H6)Cr(CO)3 (M= Cr or Mo): A time-resolved Infrared, Matrix Isolation, and DFT investigation
Alamiry, Mohammed A. H.,Boyle, Nicola M.,Brookes, Christopher M.,George, Michael W.,Conor, Long,Portius, Peter,Pryce, Mary T.,Ronayne, Kate L.,Sun, Xue-Zhong,Towrie, Michael,Khuong, Q. Vuong
, p. 1461 - 1468 (2009/07/18)
The photochemistry of η6-C6H6)M(CO) 3 (M = Cr or Mo) is described. Photolysis with λexc. > 300 nm of (η6-C6H6)Cr(CO)3 in low-temperature matrixes containing CO produce
