Triply bridged thiobenzoato carbonyl manganates(I) and rhenates(I). The crystal and molecular structure of caesium tris(μ-thiobenzoatos(S))bis(tricarbonyl rhenate)

Mattes, R.; Weber, Heinrich

doi:10.1016/s0022-328x(00)87870-5

Cited by 18 publications

(5 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Noteworthy, there was no evidence of formation of the same dinuclear species when the reaction was attempted starting from [Re(CO) 5 Cl] instead of [Re(CO) 5 Br], hinting to the fact that the higher lability of the bromide ligand might be favoring the dinuclear assembly by displacement with the negatively charged tetrazolato ligand. Assemblies with loss of two CO and a bromide ligand have in fact been reported by treatment of [Re(CO) 5 Br] with anionic ligands such as 2-pyridyltetrazolate or monothiobenzoate. , …”

Section: Resultssupporting

confidence: 89%

“…Assemblies with loss of two CO and a bromide ligand have in fact been reported by treatment of [Re(CO) 5 Br] with anionic ligands such as 2-pyridyltetrazolate or monothiobenzoate. 24,30 In an attempt to obtain a cyclometalated rhenium(I) complex, (2-tert-butyltetrazol-5-yl)benzene was combined with [Re(CO) 5 Br] in refluxing toluene ( Figure 1). While single crystals could be grown, the bulk was always found contaminated with other unidentified products that could not be easily removed.…”

Section: ■ Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ligand-Induced Structural, Photophysical, and Electrochemical Variations in Tricarbonyl Rhenium(I) Tetrazolato Complexes

et al. 2013

View full text Add to dashboard Cite

Treatment of [Re(CO) 5 X] (X = Cl, Br) with 2-(2-tert-butyltetrazol-5-yl)pyridine yielded neutral mononuclear complexes by exchange of two CO ligands for the chelating tetrazolato ligand. Treatment of [Re(CO) 5 Br] with phenyltetrazolate resulted in the assembly of an anionic dinuclear rhenium tricarbonyl species bridged by three tetrazole rings. The reaction of [Re(CO) 5 Br] with (2-tert-butyltetrazol-5yl)benzene formed an analogous neutral dinuclear complex bridged by a tetrazole ring as well as two bromide ligands; however this complex was found to be rather unstable in solution and was only structurally characterized via X-ray diffraction. The first three complexes were investigated for their photophysical properties, highlighting phosphorescent emission from their triplet metal-to-ligand charge transfer excited states, although in the case of the dinuclear species the quantum yield was found to be extremely low. The complexes are also characterized for their electrochemical behavior, and while the neutral mononuclear species show irreversible oxidations, the dinuclear complex displays one reversible and simultaneous two-electron oxidation.

show abstract

Section: Resultssupporting

confidence: 89%

Section: ■ Introductionmentioning

confidence: 99%

Ligand-Induced Structural, Photophysical, and Electrochemical Variations in Tricarbonyl Rhenium(I) Tetrazolato Complexes

et al. 2013

View full text Add to dashboard Cite

show abstract

“…The reaction of [Mn(CO) 5 Br] with salt-like substrates such as KSC(O)Ph yields the potassium complex of [{(OC) 3 Mn} 2 {μ-SC(O)Ph} 3 ] − . 23 Generally, complexes with a central bipyramidal Mn 2 S 3 core are available via several routes starting from tetraalkylammonium salts of [Mn 2 (μ-Br) 3 (CO) 6 ] − which can be reacted with Bu 3 Sn-SR, NaSR, or HSR (R = Ph, Bu, Me). 24 Oxidation of the phenyl derivative yields the neutral mixed valent dimanganese(I,II) complex.…”

Section: ■ Introductionmentioning

confidence: 99%

CORM-EDE1: A Highly Water-Soluble and Nontoxic Manganese-Based photoCORM with a Biogenic Ligand Sphere

et al. 2015

View full text Add to dashboard Cite

[Mn(CO)5Br] reacts with cysteamine and 4-amino-thiophenyl with a ratio of 2:3 in refluxing tetrahydrofuran to the complexes of the type [{(OC)3Mn}2(μ-SCH2CH2NH3)3]Br2 (1, CORM-EDE1) and [{(OC)3Mn}2(μ-SC6H4-4-NH3)3]Br2 (2, CORM-EDE2). Compound 2 precipitates during refluxing of the tetrahydrofuran solution as a yellow solid whereas 1 forms a red oil that slowly solidifies. Recrystallization of 2 from water yields the HBr-free complex [{(OC)3Mn}2(μ-S-C6H4-4-NH2)2(μ-SC6H4-4-NH3)] (3). The n-propylthiolate ligand (which is isoelectronic to the bridging thiolate of 1) leads to the formation of the di- and tetranuclear complexes [(OC)4Mn(μ-S-nPr)2]2 and [(OC)3Mn(μ-S-nPr)]4. CORM-EDE1 possesses ideal properties to administer carbon monoxide to biological and medicinal tissues upon irradiation (photoCORM). Isolated crystalline CORM-EDE1 can be handled at ambient and aerobic conditions. This complex is nontoxic, highly soluble in water, and indefinitely stable therein in the absence of air and phosphate buffer. CORM-EDE1 is stable as frozen stock in aqueous solution without any limitations, and these stock solutions maintain their CO release properties. The reducing dithionite does not interact with CORM-EDE1, and therefore, the myoglobin assay represents a valuable tool to study the release kinetics of this photoCORM. After CO liberation, the formation of MnHPO4 in aqueous buffer solution can be verified.

show abstract

“…Re I tricarbonyl sulfur-bridged metallacycles have been reported previously (Calhorda et al, 1993;Mattes & Weber, 1979;Nefedov et al, 1993). In a structural report by Nkoe et al (2016), a similar synthetic procedure used for the preparation of (2) was employed, the only difference being the addition of triphenylphosphine (PPh 3 ) and sodium bicarbonate to the reaction mixture.…”

Section: Synthesis and Spectroscopymentioning

confidence: 55%

“…Sulfur tends to form bridges because it is a soft ligand. A search of the Cambridge Structural Database (CSD; Groom et al, 2016) revealed three dinuclear Re I tricarbonyl structures, where three sulfur bridges [one aliphatic (LEWMEF;Nefedov et al, 1993), one benzylic (PESPOS; Calhorda et al, 1993) and one S-CO-Ph (CSTBRE; Mattes & Weber, 1979)] are formed between the two metal centres, and seven dinuclear Re I tricarbonyl structures with two sulfur bridges with the S atoms in these bridges being saturated aliphatic S atoms [HEPLOE and HEPLUK (Manimaran et al, 2006), IRUQES and IRUQIW (Gupta et al, 2011), SUGNUD (Benkstein et al, 1998), and VUVNUW and VUVPEI (Vanitha et al, 2010)], similar to the case of (1). These sulfur bridges are thiobenzilic and thioaliphatic in nature, in contrast to a phenolic S atom which would only be able to form one bond, viz.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Re^Itricarbonyl complexes with various sulfur- and oxygen-donating ligands: crystal structures of two Re^Idinuclear structures bridged by S atoms

et al. 2018

View full text Add to dashboard Cite

The synthesis and characterization of two dinuclear complexes, namely fachexacarbonyl-1 3 C,2 3 C-(pyridine-1N)[-2,2 0 -sulfanediyldi(ethanethiolato)-1 2 S 1 ,S 3 :2 3 S 1 ,S 2 ,S 3 ]dirhenium(I), [Re 2 (C 4 H 8 S 3 )(C 5 H 5 N)(CO) 6 ], (1), and tetraethylammonium fac-tris(-2-methoxybenzenethiolato-2 S:S)bis[tricarbonylrhenium(I)], (C 8 H 20 N)[Re 2 (C 7 H 7 OS) 3 (CO) 6 ], (2), together with two mononuclear complexes, namely (2,2 0 -bithiophene-5-carboxylic acid-2 S,S 0 )bromidotricarbonylrhenium(I), (3), and bromidotricarbonyl(methyl benzo[b]thiophene-2-carboxylate-2 O,S)rhenium(I), (4), are reported. Crystals of (1) and (2) were characterized by X-ray diffraction. The crystal structure of (1) revealed two Re-S-Re bridges. The thioether S atom only bonds to one of the Re I metal centres, while the geometry of the second Re I metal centre is completed by a pyridine ligand. The structure of (2) is characterized by three S-atom bridges and an ReÁ Á ÁRe nonbonding distance of 3.4879 (5) Å , which is shorter than the distance found for (1) [3.7996 (6)/3.7963 (6) Å ], but still clearly a nonbonding distance. Complex (1) is stabilized by six intermolecular hydrogen-bond interactions and an OÁ Á ÁO interaction, while (2) is stabilized by two intermolecular hydrogen-bond interactions and two OÁ Á Á interactions.

show abstract

Triply bridged thiobenzoato carbonyl manganates(I) and rhenates(I). The crystal and molecular structure of caesium tris(μ-thiobenzoatos(S))bis(tricarbonyl rhenate)

Cited by 18 publications

References 15 publications

Ligand-Induced Structural, Photophysical, and Electrochemical Variations in Tricarbonyl Rhenium(I) Tetrazolato Complexes

Ligand-Induced Structural, Photophysical, and Electrochemical Variations in Tricarbonyl Rhenium(I) Tetrazolato Complexes

CORM-EDE1: A Highly Water-Soluble and Nontoxic Manganese-Based photoCORM with a Biogenic Ligand Sphere

Synthesis of Re^Itricarbonyl complexes with various sulfur- and oxygen-donating ligands: crystal structures of two Re^Idinuclear structures bridged by S atoms

Contact Info

Product

Resources

About

Triply bridged thiobenzoato carbonyl manganates(I) and rhenates(I). The crystal and molecular structure of caesium tris(μ-thiobenzoatos(S))bis(tricarbonyl rhenate)

Cited by 18 publications

References 15 publications

Ligand-Induced Structural, Photophysical, and Electrochemical Variations in Tricarbonyl Rhenium(I) Tetrazolato Complexes

Ligand-Induced Structural, Photophysical, and Electrochemical Variations in Tricarbonyl Rhenium(I) Tetrazolato Complexes

CORM-EDE1: A Highly Water-Soluble and Nontoxic Manganese-Based photoCORM with a Biogenic Ligand Sphere

Synthesis of ReItricarbonyl complexes with various sulfur- and oxygen-donating ligands: crystal structures of two ReIdinuclear structures bridged by S atoms

Contact Info

Product

Resources

About

Synthesis of Re^Itricarbonyl complexes with various sulfur- and oxygen-donating ligands: crystal structures of two Re^Idinuclear structures bridged by S atoms