Fadime Uğur

Reaction of metal carbonyls with 2-hydroxy-1-naphthaldeyde methanesulfonylhydrazone and characterization of the substitution products

Five new complexes, [M(CO)5(nafmsh)] [M = Cr, 1; Mo, 2; W, 3], [Re(CO)4Br(nafmsh)], 4 and [Mn(CO)3(nafmsh)], 5 have been synthesized by the photochemical reaction of metal carbonyls [M(CO)6] (M = Cr, Mo, W), [Re(CO)5Br], and [Mn(CO)3Cp] with 2-hydroxy-1-naphthaldehyde methanesulfonylhydrazone (nafmsh). The complexes have been characterized by elemental analysis, EI mass spectrometry, FT-IR, and 1H NMR spectroscopy. The spectroscopic studies show nafmsh is a monodentate ligand coordinating via the imine N donor atom in 1–4 and as a tridentate ligand in 5.

Photochemical reactions of metal carbonyls [M(CO)6 (M=Cr, Mo, W), Re(CO)5Br, Mn(CO)3Cp] with salicylaldehyde ethanesulfonylhydrazone (Hsalesh)

The new complexes, M(CO)5(Hsalesh) (M = Cr (1), Mo (2), W (3)), Re(CO)4Br(Hsalesh) (4) and Mn(CO)3(Hsalesh) (5) have been synthesized by the photochemical reaction of metal carbonyls M(CO)6 (M = Cr, Mo, W), Re(CO)5Br, and Mn(CO)3Cp with salicylaldehyde ethanesulfonyl hydrazone (Hsalesh). The complexes have been characterized by elemental analysis, EI mass spectrometry, FT-IR and 1H NMR spectroscopy. The spectroscopic studies show that Hsalesh behaves as a monodentate ligand coordinating via imine N donor atom in M(CO)5(Hsalesh) (M = Cr, Mo, W) and Re(CO)4Br(Hsalesh) and as a tridentate ligand in Mn(CO)3(salesh).

Photochemical reactions of metal carbonyls [M(CO)6 (M = Cr, Mo and W), Re(CO)5Br, Mn(CO)3Cp] with 2-hydroxyacetophenone methanesulfonylhydrazone (apmsh)

Five new complexes, [M(CO)5(apmsh)] [M = Cr; (1), Mo; (2), W; (3)], [Re(CO)4Br(apmsh)] (4) and [Mn(CO)3(apmsh)] (5) have been synthesized by the photochemical reaction of metal carbonyls [M(CO)6] (M = Cr, Mo and W), [Re(CO)5Br], and [Mn(CO)3Cp] with 2-hydroxyacetophenone methanesulfonylhydrazone (apmsh). The complexes have been characterized by elemental analysis, mass spectrometry, f.t.-i.r. and 1H spectroscopy. Spectroscopic studies show that apmsh behaves as a monodentate ligand coordinating via the imine N donor atom in [M(CO)5(apmsh)] (1–4) and as a tridentate ligand in (5).

Synthesis and Characterization of Metal Carbonyl Complexes of M(CO)6 (M = Cr, Mo, and W), Re(CO)5Br, and Mn(CO)3Cp with Acetonemethanesulfonylhydrazone (amsh) and Methanesulfonylhydrazone (msh)

Abstract Ten new complexes, [M(CO)5(amsh)] [M = Cr; (1a), Mo; (2a), W; (3a)], [Re(CO)4Br(amsh)] (4a), and [Mn(CO)2(amsh)Cp] (5a) and [M(CO)5(msh)] [M = Cr; (1b); Mo, (2b); W, (3b)], [Re(CO)4Br(msh)], (4b), and [Mn(CO)3(msh)], (5b), have been synthesized by the photochemical reaction of the metal carbonyls [M(CO)6] (M = Cr, Mo, and W), [Re(CO)5Br], and [Mn(CO)3Cp] with acetonemethanesulfonylhydrazone (amsh) and methanesulfonyl hydrazine (msh). The complexes have been characterized by elemental analyses, mass spectrometry, FT‐IR and 1H NMR spectroscopy. The spectroscopic studies show that amsh and msh behave as a monodentate ligands coordinating via an imine N donor atom in (1a)–(5a) and a hydrazine N donor atom in (1b)–(5b).

Photochemical reactions of M(CO)6 (M = Cr, Mo, W) with Ph2P(S)P(S)Ph2

New complexes {M(CO)4[Ph2P(S)P(S)Ph2]} (M = Cr, Mo and W), (1a)–(3a), [(1a), M = Cr; (2a), M = Mo; (3a), M = W] and {M2(CO)10[μ-Ph2P(S)P(S)Ph2]} (M = Cr, Mo, W), [(1b)–(3b) [(1b), M = Cr; (2b), M = Mo; (3b), M = W]] have been prepared by the photochemical reaction of M(CO)6 with Ph2P(S)P(S)Ph2 and characterized by elemental analyses, f.t.-i.r. and 31P-(1H)-n.m.r. spectroscopy and by FAB-mass spectrometry. The spectra suggest cis-chelate bidentate coordination of the ligand in {M(CO)4[Ph2P(S)P(S)Ph2]} and cis-bridging bidentate coordination of the ligand between two metals in (M = Cr, Mo and W).

Photochemical reactions of metal carbonyls [M(CO)6 (M=Cr, Mo, W)] with N , N′ -bis(salicylidene)-1,2-bis- ( o -aminophenoxy)ethane

The complexes [M(CO)4(η2-H2L)] [M = Cr; 1, Mo; 2, W; 3] have been synthesized by photochemical reactions of VIB metal carbonyls [M(CO)6] [M = Cr, Mo, W] with N,N′-bis(salicylidene)-1,2-bis-(o-aminophenoxy)ethane (H2L) in THF and characterized by elemental analyses, FTIR, 1H NMR and mass spectra. The H2L ligand is coordinated to the central metal as a bidentate ligand via the central azomethine nitrogen atoms in 1–3.

Photochemical reactions of chromium hexacarbonyl with tetraalkyldiphosphine disulfides

New complexes [Cr(CO)4(R2P(S)P(S)R2)] and [Cr2(CO)10(μ-R2P(S)P(S)R2)] (R = Me, Et, Prn, Bun), (1a)–(1d) and (2a)–(2d) [(1a), R = Me; (1b), R = Et; (1c), R = Prn; (1d), R = Bun; (2a), R = Me; (2b), R = Et; (2c), R = Prn; (2d), R = Bun] have been prepared by the photochemical reaction of Cr(CO)6 with R2P(S)P(S)R2 (R = Me, Et, Prn and Bun) and characterized by elemental analyses, FT-i.r., 31P-[1H]-n.m.r. spectroscopy and FAB-mass spectrometry. The spectroscopic data suggest cis-chelate bidentate coordination of the ligand in [Cr(CO)4(R2P(S)P(S)R2)] and cis-bridging bidentate coordination of the ligand between two metals in [Cr2(CO)10(μ-R2P(S)P(S)R2)] (R = Me, Et, Prn and Bun).

Photochemical reactions of Re(CO)5Br with Ph2P(S)(CH2)nP(S)Ph2 (n = 1,2,3)

The complexes fac-[Re(CO)3Br{Ph2P(S)(CH2)nP(S)Ph2}] [1a, n = 1; 2a, n = 2; 3a, n = 3] and [Re2(CO)8Br2{μ- Ph2P(S)(CH2)nP(S)Ph2}] [1b, n = 1; 2b, n = 2; 3b, n = 3] have been prepared by the photochemical reaction of Re(CO)5Br with Ph2P(S)(CH2)nP(S)Ph2. The products have been characterized by elemental analysis, mass spectroscopy, FT-IR and 31 P-[1H]-NMR spectrometry. The results suggest cis-chelate bidentate coordination of the ligand in fac-1a - 3a and cis-bridging bidentate coordination of the ligand between two metals in 1b - 3b.