Synthesis and X-ray crystal structure of [ReO(Cl){(2-OC6H4CHNCH2CH2OCH2)2}], an example of four-co-ordination by a potentially sexidentate ligand

Banbery, Hilary J.; McQuillan, Ferida S.; Hamor, T. A.; Jones, Christopher J.; McCleverty, Jon A.

doi:10.1039/dt9890001405

Cited by 22 publications

(22 citation statements)

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“…The coordination geometry around the rhenium is highly distorted octahedral. The two nitrogen atoms N (1) The Re=O(3) distance of 1.674(5) Å (Table 1) is similar to those reported previously [10,16,17]. 2are typical for sp 3 hybridized nitrogen atoms and are within the range expected from a comparison of other six-coordinate monooxorhenium(V) complexes containing the ClN 2 O 3 donor set [10,16,17].…”

Section: Description Of the Structures [Reocl(had)] (1)supporting

confidence: 85%

“…In the infrared spectrum of 1 the asymmetric Re=O stretching frequency of 957 cm -1 appears as a sharp, strong band which falls in the region of 951-966 cm -1 that is normally observed for complexes with a phenoxy donor atom trans to the Re=O moiety [10,16,17]. The infrared spectrum of 2 provides evidence for the presence of the perrhenate anion, with the characteristic strong absorption band at 910 cm -1 ascribed to v(Re=O) of ReO 4 -.…”

Section: Spectral Characterisationmentioning

confidence: 86%

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Synthesis of a ‘4+1’ Re(V) complex from Re(III), and its disproportionation to Re(IV) and Re(VII)

Mayer

Yumata

Gerber

et al. 2010

Bull. Chem. Soc. Eth.

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The distorted octahedral oxorhenium(V) complex [ReOCl(had)] (1) (H 2 had = N,N-bis(2hydroxybenzyl)-2-(2-aminoethyl)dimethylamine) was prepared from the oxidation of [ReCl 3 (MeCN)(PPh 3) 2 ] by dioxygen in the presence of H 2 had in ethanol. This reaction was done under reflux conditions for a relatively short reaction time of an hour. However, increasing the reaction period to seven days led to the disproportionation of 1 to [Re IV Cl(had)(PPh 3)](Re VII O 4) (2). Both compounds were characterized by infra-red spectroscopy and X-ray crystallography.

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Section: Description Of the Structures [Reocl(had)] (1)supporting

confidence: 85%

Section: Spectral Characterisationmentioning

confidence: 86%

Synthesis of a ‘4+1’ Re(V) complex from Re(III), and its disproportionation to Re(IV) and Re(VII)

Mayer

Yumata

Gerber

et al. 2010

Bull. Chem. Soc. Eth.

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“…5,8,9 Various rhenium Schiff base complexes have also been explored for potential applications to diagnostic and therapeutic nuclear medicine. [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] Mononuclear, dinuclear, and trinuclear complexes of Re(V) with tetradentate Schiff base ligands were first reported by Wilkinson. 10,[12][13][14][15][16][17][19][20][21][22]25,28,29 Mononuclear complexes ([ReOXL]) are generally isolated under dry, inert conditions using excess ligand as the proton scavenger.…”

Section: Introductionmentioning

confidence: 99%

Novel rhenium(iii, iv, and v) tetradentate N2O2 Schiff base mononuclear and dinuclear complexes

et al. 2013

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Reaction of (Bu4N)[ReOCl4] with the tetradentate Schiff base ligand α, α’-[(1,1-dimethylethylene)dinitrilo]di-o-cresol (sal2ibnH2) yields cis-[ReVOCl(sal2ibn)], which quickly forms trans-[μ-O(ReVO(sal2ibn))2] in solution. The dinuclear complex can also be isolated by the addition of base (Et3N) to the reaction mixture. Conversely, the mononuclear complex can be trapped as cis-[ReVO(NCS)(sal2ibn)] by addition of (Bu4N)SCN to the reaction mixture. Reduction of cis-[ReVO(NCS)sal2ibn] with triphenylphosphine gives the unique trans-[ReIII(NCS)(PPh3)(sal2ibn)] and rare μ-oxo Re(IV) dimer trans-[μ-O(ReIV(NCS)(sal2ibn))2]. All of the complexes were characterized by 1H and 13C NMR, FT-IR spectroscopy, electrospray ionization mass spectrometry (ESI-MS), cyclic voltammetry and single crystal X-ray diffraction.

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“…In the infrared spectrum of complex 1, the Re=O stretching frequency appears as a sharp strong band at 945 cm -1 , which falls in the region of 940-970 cm -1 that is normally observed for sixcoordinate rhenium(V) complexes containing a hard alkoxy donor atom trans to the Re=O moiety [14]. Coordination of the imidazolyl nitrogen is indicated by the shift of ν(C=N) from around 1670 cm -1 in the free ligand (Htmi) to 1632 cm -1 in the complex.…”

Section: Spectral Analysismentioning

confidence: 82%

Synthesis and crystal structure of an oxorhenium(V) complex containing a tridentate imidazole ligand

Tshentu

Gerber

Mayer

2007

Bull. Chem. Soc. Eth.

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The reaction of equimolar amounts of (n-Bu4N)[ReOCl4] and 2-(1-ethanolthiomethyl)-1methylimidazole (Htmi) in acetonitrile yielded cis-[ReOCl2(tmi)]. An X-ray diffraction study shows that tmi¯ coordinates as a uninegative N,S,O-tridentate ligand to give distorted octahedral geometry around the rhenium(V) ion. The three donor atoms occupy a triangular face in an octahedron, with the alcoholate oxygen coordinated trans to the oxo group.

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Synthesis and X-ray crystal structure of [ReO(Cl){(2-OC₆H₄CHNCH₂CH₂OCH₂)₂}], an example of four-co-ordination by a potentially sexidentate ligand

Cited by 22 publications

References 0 publications

<b>Synthesis of a ‘4+1’ Re(V) complex from Re(III), and its disproportionation to Re(IV) and Re(VII)</b>

<b>Synthesis of a ‘4+1’ Re(V) complex from Re(III), and its disproportionation to Re(IV) and Re(VII)</b>

Novel rhenium(iii, iv, and v) tetradentate N2O2 Schiff base mononuclear and dinuclear complexes

<b>Synthesis and crystal structure of an oxorhenium(V) complex containing a tridentate imidazole ligand</b>

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