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P.A. van der Schaaf

Utrecht University

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Featured researches published by P.A. van der Schaaf.

Applied Spectroscopy | 1987

Identification of the Isomers of Carvomenthol by an Infrared Study of the OH-Stretching Vibration

E.T.G. Lutz; P.A. van der Schaaf; J.H. van der Maas

A natural mixture of carvomenthols has been separated by HPLC into its four possible isomers. The infrared spectra of the OH-stretching vibration have been recorded for each of these components as a solution in CCl4 and CS2. Identification of the isomers followed, on the basis of these spectral data and those of some reference compounds. Evidence is found for a ring-conversion equilibrium in iso-carvomenthol at ambient temperature.

Organometallics | 1989

Synthesis and characterization of {2,6-bis[d(dimethylamino)methyl][phenyl}tin(II) chloride and {2,6-Bis{(dimethylamino)methyl]phenyl}(4-tolyl)tin(II) the first example of a mixed diaryltin(II) compound

G. van Koten; J.T.B.H. Jastrzebski; P.A. van der Schaaf; J. Boersma; Martin C. Zoutberg; D. Heijdenrijk

Organic Letters | 2000

Synthesis of Periphery-Functionalized Dendritic Molecules Using Polylithiated Dendrimers as Starting Material

G. van Koten; Peter Wijkens; Johann T. B. H. Jastrzebski; P.A. van der Schaaf; R. Kolly; A. Hafner

Inorganic Chemistry | 1993

Mono- and Bis-Ortho-Chelated Lithium and Sodium Phenolates : Molecular Structures of the First Lithium Phenolate with a Stable, Trinuclear Structure, and of a Tetranuclear Sodium Analog [MOC6H2(CH2NMe2)2-2,6-Me4]x (M = Li: x = 3; M = Na: x = 4)

G. van Koten; P.A. van der Schaaf; J.T.B.H. Jastrzebski; M.P. Hogerheide; Wilberth J. J. Smeets; A.L. Spek; J. Boersma

Organometallics | 1994

Tungsten(VI) Phenylimido Alkylidene complexes containing a Monoanionic O,N-Chelating Ligand and Their Isolated Precursor Complexes: X-ray Structures of W(CH2SiMe3)3(=NPh)[OCPh2(2-py)] and W(=CHSiMe3)(CH2SiMe3)(=NPh)[OCPh2(2-py)]

G. van Koten; P.A. van der Schaaf; R.A.T.M. Abbenhuis; W.P.A. van der Noort; R. de Graaf; D.M. Grove; Wilberth J. J. Smeets; A.L. Spek

Organometallics | 1993

Five-Coordinate Tungsten(VI) Phenylimido Alkylidene Complexes, and Isolated Precursors, Containing a Chelating Arylamine Ligand as Active ROMP Catalysts : Molecular Structure of W(C6H4CH2NMe2-2)(-CHSiMe3)(CH2SiMe3)(=NPh)

G. van Koten; P.A. van der Schaaf; D.M. Grove; Wilberth J. J. Smeets; A.L. Spek

Organometallics | 1994

A comparative study of thermal- and radiation-induced single electron transfer in reactions of 1,4-diaza-1,3-butadienes with dialkylzinc compounds

G. van Koten; E. Wissing; Evelien Rijnberg; P.A. van der Schaaf; K. van Gorp; J. Boersma

Inorganic Chemistry | 1993

Mononuclear Tungsten(VI) Phenylimido Phenoxide and Alkoxide Complexes with Intramolecular Amine Coordination : Molecular Structure of WCl3(==NPh)[OC6H2(CH2NMe2)2-2,6-Me-4]

G. van Koten; P.A. van der Schaaf; J. Boersma; A.L. Spek

Organometallics | 1992

Evidence for hexacoordinate tin centers in trioganotin halides containing two 8-(dimethylamino)-1-naphthyl ligands

G. van Koten; J.T.B.H. Jastrzebski; P.A. van der Schaaf; J. Boersma; Dirk J. A. De Ridder; D. Heijdenrijk

Organometallics | 1993

Organozinc complexes with Monoanionic, Chelating Phenolates or [2]-Pyridylmethanol : Molecular Structure of [Zn(CH2SiMe3){OCH2(2-Py)}]4

G. van Koten; P.A. van der Schaaf; E. Wissing; J. Boersma; Wilberth J. J. Smeets; A.L. Spek

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G. van Koten

Utrecht University

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J. Boersma

Utrecht University

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Wilberth J. J. Smeets

Utrecht University

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J.T.B.H. Jastrzebski

University of Amsterdam

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D. Heijdenrijk

University of Amsterdam

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D.M. Grove

University of Amsterdam

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E. Wissing

Utrecht University

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Johann T. B. H. Jastrzebski

Utrecht University

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A. Hafner

Utrecht University

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Anthony L. Spek

Utrecht University

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