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Volumn 45, Issue 19, 2006, Pages 3083-3086

A PH-functionalized polyphosphazene: A macromolecule with a highly flexible backbone

Author keywords

Ab initio calculations; Phosphazenes; Polycondensation; Polymerization

Indexed keywords

LIGHT SCATTERING; MACROMOLECULES; MAGNETIC RESONANCE IMAGING; PH EFFECTS; POLYCONDENSATION; THERMAL EFFECTS;

EID: 33746216408     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200504208     Document Type: Article
Times cited : (12)

References (32)
  • 11
    • 0033570942 scopus 로고    scopus 로고
    • Angew. Chem. Int. Ed. 1999, 38, 3321-3323.
    • (1999) Angew. Chem. Int. Ed. , vol.38 , pp. 3321-3323
  • 15
    • 0032544479 scopus 로고    scopus 로고
    • Angew. Chem. Int. Ed. 1998, 37, 2390-2392.
    • (1998) Angew. Chem. Int. Ed. , vol.37 , pp. 2390-2392
  • 16
    • 33746204854 scopus 로고    scopus 로고
    • note
    • Further information on materials and methods is available in the Supporting Information.
  • 17
    • 33746204842 scopus 로고    scopus 로고
    • Diploma Thesis, University of Bonn (Germany)
    • 2 (R = Me (2), Et) in the course of the condensation reactions was verified by complexation with tetracarbonylnickel: M. Raab, Diploma Thesis, University of Bonn (Germany), 1998.
    • (1998)
    • Raab, M.1
  • 18
    • 0344710445 scopus 로고
    • An early report on the ammonolysis of the chlorophosphine 1 predicts the formation of tris(hydrido)cyclotriphosphazenes on the basis of spectroscopic investigations: A. Schmidpeter, H. Rossknecht, Chem. Ber. 1974, 107, 3146-3148.
    • (1974) Chem. Ber. , vol.107 , pp. 3146-3148
    • Schmidpeter, A.1    Rossknecht, H.2
  • 25
    • 33746235273 scopus 로고    scopus 로고
    • note
    • Attempts to measure the molecular weight of 3 by size exclusion chromatography (SEC) in toluene by using styragel columns and polystyrol standards for calibration failed as a result of adsorption interactions or thermal decomposition on the column. Analyzable data could not be obtained.
  • 30
    • 0035972372 scopus 로고    scopus 로고
    • Although attempts to detect the PH form by NMR experiments failed, experimental/computational studies, for example, on the influence of electronic effects of the substituents on the equilibrium between the NH-phosphanylamido form and the tautomeric PH-iminophosphorane form, strongly suggest the occurrence of these species in the course of the reaction; see, for example: M. Raab, A. Sundermann, G. Schick, A. Loew, M. Nieger, W. W. Schoeller, E. Niecke, Organometallics 2001, 20, 1770-1775.
    • (2001) Organometallics , vol.20 , pp. 1770-1775
    • Raab, M.1    Sundermann, A.2    Schick, G.3    Loew, A.4    Nieger, M.5    Schoeller, W.W.6    Niecke, E.7
  • 31
    • 33746248490 scopus 로고    scopus 로고
    • note
    • 3, is energetically favored by about 2.5 kcal per PN unit.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.