Sema Sert

SYNTHESIS AND CHARACTERIZATION OF THE PRODUCTS FROM REACTION OF METAL CARBONYLS (M(CO)6 (M ¼ Cr, Mo, W), Re(CO)5Br, Mn(CO)3Cp) WITH SALICYLALDEHYDE METHANESULFONYLHYDRAZONE

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

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 some metal carbonyls with 2-hydroxyacetophenone ethanesulfonylhydrazone

Abstract Five new complexes, [M(CO) 5 (apesh)] [M=Cr; ( 1 ), Mo; ( 2 ), W; ( 3 )], [Re(CO) 4 Br(apesh)] ( 4 ) and [Mn(CO) 3 (apesh) ] ( 5 ) have been synthesized by the photochemical reaction of metal carbonyls [M(CO) 6 ] (M=Cr, Mo, W), [Re(CO) 5 Br], and [Mn(CO) 3 Cp] with 2-hydroxyacetophenone ethanesulfonylhydrazone (apesh). The complexes have been characterized by elemental analysis, mass spectrometry, FT-IR, 1 H NMR spectroscopy. The spectroscopic studies show that apesh behaves as a monodentate ligand coordinating via imine N donor atom in ( 1 )–( 4 ) and as 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 metal carbonyls [M(CO)6 (M = Cr, Mo, W), Re(CO)5Br, Mn(CO)3Cp] with 3,5-dimethyl-tetrahydro-2H-1,3,5-thiadiazine-2-thione (DTTT) and the crystal structure of [W(CO)5(DTTT)]

Abstract Five new complexes, [M(CO)5(DTTT)] [M=Cr; 1, Mo; 2, W; 3], [Re(CO)4Br(DTTT)] (4) and [Mn(CO)2Cp(DTTT)] (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 3,5-dimethyl-tetrahydro-2H-1,3,5-thiadiazine-2-thione (DTTT). The complexes have been characterized by elemental analysis, mass spectrometry, FTIR, 1H and 13C{1H} NMR spectroscopy. The spectroscopic studies show that DTTT behaves as a monodentate ligand coordinating via the sulfur (CS) donor atom in 1–5. An X-ray diffraction study of [W(CO)5(DTTT)] (3) confirms that the tungsten adopts a distorted octahedral geometry with local C4v symmetry.

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 Re(CO)5Br with tetraalkyldiphosphine disulfides (R=Me, Et, nPr, nBu, Ph) and the crystal structure of [ReBr(CO)3(Et2P(S)P(S)Et2)]

Abstract The hitherto unknown series of complexes fac-[Re(CO)3Br{R2P(S)P(S)R2}] 1a–5a (1a, R=Me; 2a, R=Et; 3a, R=nPr; 4a, R=nBu; 5a, R=Ph) and [Re2(CO)8Br2{cis-μ-R2P(S)P(S)R2}] 1b–5b [1b, R=Me; 2b, R=Et; 3b, R=nPr; 4b, R=nBu; 5b, R=Ph] have been prepared by the photochemical reaction of Re(CO)5Br with R2P(S)P(S)R2. The complexes have been characterized by elemental analysis, mass spectroscopy (EI), FT-IR and 31P{1H} NMR spectrometry. The spectroscopic studies suggest cis-chelate bidentate coordination of the ligand in fac-[Re(CO)3Br{R2P(S)P(S)R2}] and cis-bridging bidentate coordination of the ligand between two metals in [Re2(CO)8Br2{cis-μ-R2P(S)P(S)R2}] (R=Me, Et, nPr, nBu, Ph). An X-ray diffraction study of [ReBr(CO)3(Et2P(S)P(S)Et2)] confirms that the rhenium adopts a distorted octahedral geometry with local Cs symmetry.

Photochemical Complexation Reactions of M(CO)6 (M=Cr, Mo, W) and Re(CO)5Br with Rhodanine (4‐Thiazolidinone‐2‐thioxo) and 5‐Substituted Rhodanines

The new complexes [M(CO)5‐DABRd] [M=Cr; 1, Mo; 2, W; 3], [cis‐Re(CO)4Br‐DABRd] (4), [M(CO)5‐BRd] [M=Cr; 5, Mo; 6, W; 7] and [Mo(CO)5‐L] [L=Rd, 8; 2CBRd, 9; 2HNARd, 10; IBRd, 11] have been synthesized by the photochemical reactions of VIB and VIIB group metal carbonyls [M(CO)6] [M=Cr, Mo, W] and [Re(CO)5Br] with 5‐(4‐dimethylaminobenzylidene)rhodanine (DABRd), 5‐benzylidenerhodanine (BRd), rhodanine (Rd), 5‐(2‐chlorobenzylidene)rhodanine (2CBRd), 5‐(2‐hydroxynaphtylidene)rhodanine (2HNARd), 5‐(4‐isopropylbenzylidene)rhodanine (IBRd) and characterized by elemental analysis, FT‐IR, 1H and 13C‐{1H}‐NMR spectroscopy and by Mass spectrometry. The spectroscopic studies show that all rhodanine ligands act as monodentate ligands coordinating via the sulfur (C˭S) donor atom in (1–11).