Probing sup 187 Os NMR of complexes containing sup 187 Os in natural abundance via indirect heteronuclear 2D NMR spectroscopy

Journal Article · Thu Mar 01 00:00:00 EST 1990 · Organometallics; (USA)

DOI:https://doi.org/10.1021/om00117a034· OSTI ID:6330813

Benn, R; Brenneke, H; Joussen, E; Lehmkuhl, H; Ortiz, F L ^[1]

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1. Max-Planck-Institut fuer Kohlenforschung, Muelheim a.d. Ruhr (West Germany)

A versatile approach for determination of osmium-187 NMR data of dilute solutions of complexes containing {sup 187}Os in natural abundance is presented. In neutral (({eta}{sup 5}-cyclopentadienyl)(L){sub 2}(R))Os and in cationic (({eta}{sup 5}-Cp)({eta}{sup 2}-CH{sub 2}{double bond}CH{sub 2})(L){sub 2}Os){sup +} complexes (L = Ph{sub 3}P, Ph{sub 2}MeP, PhMe{sub 2}P, Me{sub 3}P, (OMe){sub 3}P, (OPh){sub 3}P; (L){sub 2} = cycloocta-1,5-diene, L{sup 1} = Ph{sub 3}P, L{sup 2} = {eta}{sup 2}-CH{sub 2}{double bond}CHC{sub 5}H{sub 11}; R = halogen, alkyl, aryl, hydrogen) {delta}({sup 187}Os) and J(Os,X) have been determined by employing two-dimensional indirect (X,Os) spectroscopy (X = {sup 1}H and {sup 31}P). {sup 187}Os NMR is a sensitive tool for characterization of complexes containing osmium in natural abundance.

• OSTI ID: 6330813
• Journal Information: Organometallics; (USA), Vol. 9:3; ISSN 0276-7333
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
OSMIUM COMPLEXES
NMR SPECTRA
DATA ANALYSIS
EXPERIMENTAL DATA
MEASURING INSTRUMENTS
MEASURING METHODS
NATURAL OCCURRENCE
COMPLEXES
DATA
INFORMATION
NUMERICAL DATA
SPECTRA
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties