Estimating Molecular Weights of Organometallics in Solution with Diffusion NMR Techniques

Bachmann, Sebastian

dc.contributor.advisor	Stalke, Dietmar Prof. Dr.
dc.contributor.author	Bachmann, Sebastian
dc.date.accessioned	2017-03-31T08:01:06Z
dc.date.available	2017-03-31T08:01:06Z
dc.date.issued	2017-03-31
dc.identifier.uri	http://hdl.handle.net/11858/00-1735-0000-0023-3DF9-7
dc.identifier.uri	http://dx.doi.org/10.53846/goediss-6222
dc.language.iso	deu	de
dc.publisher	Niedersächsische Staats- und Universitätsbibliothek Göttingen	de
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.ddc	540	de
dc.title	Estimating Molecular Weights of Organometallics in Solution with Diffusion NMR Techniques	de
dc.type	doctoralThesis	de
dc.title.translated	Estimating Molecular Weights of Organometallics in Solution with Diffusion NMR Techniques	de
dc.contributor.referee	Stalke, Dietmar Prof. Dr.
dc.date.examination	2017-03-01
dc.description.abstracteng	This PhD thesis focuses on diffusion NMR spectroscopy and the utilisation of the external calibration curve (ECC) diffusion-ordered spectroscopy (DOSY) technique on the estimation of molecular weights of organometallic compounds. The thesis is comprised of three parts. In the first part of this work, improvements of the ECC-DOSY methodology are the main focus. In particular, the limited applicability is adressed by introduction of ECCs for seven additional solvents. Furthermore, theoretical calculations on the limitations of the technique and molecule categorization are performed. Additionally, a software for the prediction of molecular weights is introduced. In the second part of this work, alkali metal cyclopentadienides are investigated with the ECC-DOSY technique in THF and DMSO. In THF they form mostly monomeric contact ion pairs, whereas in DMSO foremost solvent-separated ion pairs are observed. In the final part of this thesis, different ambiguities concerning various organometallic compounds were clarified using DOSY, e.g. for alkyl Grignard reagents.	de
dc.contributor.coReferee	Koszinowski, Konrad Prof. Dr.
dc.contributor.thirdReferee	Siewert, Inke Prof. Dr.
dc.contributor.thirdReferee	Mata, Ricardo Prof. Dr.
dc.contributor.thirdReferee	Demir, Selvan Jun.Prof. Dr.
dc.contributor.thirdReferee	John, Michael Dr.
dc.subject.eng	NMR spectroscopy	de
dc.subject.eng	Organometallics	de
dc.subject.eng	Alkali Metals	de
dc.subject.eng	Cyclopentadienides	de
dc.subject.eng	Grignard	de
dc.subject.eng	MW estimation	de
dc.subject.eng	diffusion coefficients	de
dc.subject.eng	External calibration curves	de
dc.subject.eng	DOSY	de
dc.subject.eng	ECC	de
dc.identifier.urn	urn:nbn:de:gbv:7-11858/00-1735-0000-0023-3DF9-7-1
dc.affiliation.institute	Fakultät für Chemie	de
dc.subject.gokfull	Chemie (PPN62138352X)	de
dc.identifier.ppn	883758245

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