Complexes of [Re(CO)3Cl] with Different Oxidation States of the Polyfunctional bmtz/H2bmtz Ligand System (bmtz = 3,6-bis(2-pyrimidyl)-1,2,4,5-tetrazine)

Result code in IS VaVaI

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Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Complexes of [Re(CO)3Cl] with Different Oxidation States of the Polyfunctional bmtz/H2bmtz Ligand System (bmtz = 3,6-bis(2-pyrimidyl)-1,2,4,5-tetrazine)

Original language description

Combining fac-[Re(CO)(3)Cl] with components of the ligand redox system bmtz/bmtz(-)-/H(2)bmtz/H(2)bmtz(-) (bmtz = 3,6-bis(2-pyrimidyl)-1,2,4,5-tetrazine) has led to the isolation of the complexes (H(2)bmtz)Re(CO)(3)Cl, (mu-H(2)bmtz)[Re(CO)(3)Cl](2) and (mu-bmtz)[Re(CO)(3)Cl](2). Other species characterized were (bmtz)Re(CO)(3)Cl (UV/Vis, IR), [(H(2)bmtz)Re(CO)(3)Cl](.-) (UV/Vis, IR, EPR), {(mu-H(2)bmtz)[Re(CO)(3)Cl](2)}(.-) (UV/Vis, IR, EPR) and {(mu-bmtz)[Re(CO)(3)Cl](2)}(.-) (UV/Vis, IR, X band and high-field EPR). The results confirm bmtz as very strong and H(2)bmtz as moderate n acceptor ligand versus one or two chelate-bonded low-valent metal centers. Reactivity is observed in terms of oxidative proton and reductive chloride dissociation.

Czech name

Komplexy [Re(CO)3Cl ] s různými oxidačními stavy polyfunkčního ligandového systému bmtz/H2bmtz (bmtz = 3,6-bis(2-pyrimidyl)-1,2,4,5-tetrazin)

Czech description

Spojení fac-[Re(CO)(3)Cl] s komponenty ligandového redox systému bmtz/bmtz(-)-/H(2)bmtz/H(2)bmtz(-) (bmtz = 3,6-bis(2-pyrimidyl)-1,2,4,5-tetrazin) vedl k izolaci komplexů (H(2)bmtz)Re(CO)(3)Cl, (mu-H(2)bmtz)[Re(CO)(3)Cl](2) a (mu-bmtz)[Re(CO)(3)Cl](2). Dalšími charakterizovanými částicemi byly (bmtz)Re(CO)(3)Cl (UV/VIS, IR), [(H(2)bmtz)Re(CO)(3)Cl](.- ) (UV/VIS, IR, EPR), {(mu-H(2)bmtz)[Re(CO)(3)Cl](2)}(.- ) (UV/VIS, IR, EPR ) a {(mu-bmtz)[Re(CO)(3)Cl](2)}(.- ) (UV/VIS, IR, X band a high-field EPR). Výsledky potvrzují bmtz jako velmi silný a H(2)bmtz jako mírný pi-akceptorový ligand vyhledem k jednomu nebo dvama chelátově vázaným nízkovalentním kovovým centrům. Reaktivita odpovídá oxidativní disociaci protonu a reduktivní disociaci chloridu.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CG - Electrochemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2004

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Inorganica Chimica Acta

ISSN

0020-1693

e-ISSN

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Volume of the periodical

357

Issue of the periodical within the volume

12

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

3657-3665

UT code for WoS article

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EID of the result in the Scopus database

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