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Köhler FH, Schell A. Formation of macrocyclic oligoferrocenes: a matrix-assisted laser desorption/ionization mass spectrometric study. Rapid Commun Mass Spectrom. 1999;13(12):1088-1090doi: 10.1002/(SICI)1097-0231(19990630)13:12<1088::AID-RCM615>3.0.CO;2-7.
Köhler, F. H., & Schell, A. (1999). Formation of macrocyclic oligoferrocenes: a matrix-assisted laser desorption/ionization mass spectrometric study. Rapid communications in mass spectrometry : RCM, 13(12), 1088-1090. https://doi.org/10.1002/(SICI)1097-0231(19990630)13:12<1088::AID-RCM615>3.0.CO;2-7
Köhler, and Schell. "Formation of macrocyclic oligoferrocenes: a matrix-assisted laser desorption/ionization mass spectrometric study." Rapid communications in mass spectrometry : RCM vol. 13,12 (1999): 1088-1090. doi: https://doi.org/10.1002/(SICI)1097-0231(19990630)13:12<1088::AID-RCM615>3.0.CO;2-7
Köhler FH, Schell A. Formation of macrocyclic oligoferrocenes: a matrix-assisted laser desorption/ionization mass spectrometric study. Rapid Commun Mass Spectrom. 1999 Jun;13(12):1088-1090. doi: 10.1002/(SICI)1097-0231(19990630)13:12<1088::AID-RCM615>3.0.CO;2-7. PMID: 10407282.
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Rapid Commun Mass Spectrom. 1999 Jun;13(12):1088-1090. doi: 10.1002/(SICI)1097-0231(19990630)13:12<1088::AID-RCM615>3.0.CO;2-7.

Formation of macrocyclic oligoferrocenes: a matrix-assisted laser desorption/ionization mass spectrometric study.

Rapid communications in mass spectrometry : RCM

Köhler, Schell

Affiliations

  1. Anorganisch-chemisches Institut, Technische Universität München, D-85747 Garching, Germany.

PMID: 10407282 DOI: 10.1002/(SICI)1097-0231(19990630)13:12<1088::AID-RCM615>3.0.CO;2-7

Abstract

Oligomeric ferrocenes were investigated simultaneously by matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOFMS). The oligomers were obtained by the reaction of tetrahydro-4,4,8,8-tetramethyl-4,8-disila-s-indacene-3a,7a-diyldilithium (Li(2)L) with FeCl(2).1.5 THF (THF = tetrahydrofuran). Depending on the reaction conditions up to ten linear-chain and eleven cyclic ferrocene oligomers with masses between 1139 and 5071 Da could be detected unambiguously. The most abundant macrocycles contained ten and seven iron atoms when the reactions were carried out at -20 and 25 degrees C, respectively. The chains had cyclopentadienes as end groups and formally resulted from replacing one iron of a cycle by two hydrogens, which corresponds to a mass difference of 54 Da. Copyright 1999 John Wiley & Sons, Ltd.

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