The chemistry of CaII and YbII: Astoundingly similar but not equal!

Angewandte Chemie - International Edition

Volumn 43, Issue 20, 2004, Pages 2714-2718

  Harder, Sjoerd ^a,b  

^a UNIVERSITY OF KONSTANZ   (Germany)

^b UNIVERSITY OF DUISBURG ESSEN   (Germany)

Author keywords

Alkaline earth metals; Lanthanides; Polystyrene; Stereoselective polymerization

Indexed keywords

INFRARED RADIATION; MOLECULAR STRUCTURE; NUCLEAR MAGNETIC RESONANCE; POLYMERIZATION; POLYSTYRENES; STEREOCHEMISTRY; YTTERBIUM;

STEREOGRAPHIC; SYNDIOTACTICITY;

CALCIUM;

CALCIUM; POLYSTYRENE; YTTERBIUM;

ARTICLE; INFRARED RADIATION; NUCLEAR MAGNETIC RESONANCE; POLYMERIZATION;

EID: 4544263604     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200353557     Document Type: Article

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42. The tacticity reported by us earlier (r = 84%, rr = 76%) [20] is based on a wrong, but at that time generally accepted, pentad assignment. The correct assignment, based on heptads, results in a higher syndiotacticity: F. Feil, S. Harder, Macromolecules 2003, 36, 3446. The values presented here were obtained by Gaussian fits.
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45. n is the number average molecular mass). We are currently investigating the extent of livingness and the possibility of preparing block copolymers with 1(Yb).
46. -1.
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