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Volumn 120, Issue 19, 2004, Pages 9401-9409

Second-order nonlinear optical coefficient of polyphosphazene-based materials: A theoretical study

Author keywords

[No Author keywords available]

Indexed keywords

ATOMIC CHARGES; BOND LENGTHS; OPTICAL COEFFICIENTS; POLYPHOSPHAZENE;

EID: 2942586967     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1691398     Document Type: Article
Times cited : (38)

References (39)
  • 2
    • 84862368605 scopus 로고    scopus 로고
    • See also the website of Prof. Allcock http://research.chem.psu.edu/ hragroup/index.html
  • 10
    • 2942518742 scopus 로고    scopus 로고
    • J. Zyss D. S. Chemla, Vol. I, edited by D. S. Chemla and J. Zyss (Academic, New York, 1987)
    • J. Zyss and D. S. Chemla, in, Vol. I, edited by D. S. Chemla and J. Zyss (Academic, New York, 1987).
  • 13
    • 2942520415 scopus 로고    scopus 로고
    • note
    • These two alternations could be related to simple chemical descriptors, as demonstrated later in the paper.
  • 19
    • 2942540620 scopus 로고    scopus 로고
    • note
    • L, i.e., positive when orientated in the same direction as the dipole moment, negative otherwise.
  • 31
    • 2942600632 scopus 로고    scopus 로고
    • note
    • On the dimer, MP2/6-311G* frequency calculations are possible. These calculations confirmed that the trans-cisoid conformation corresponds to a minimum (no imaginary frequency) whereas the trans-transoid conformation is unstable (one imaginary frequency).
  • 32
    • 2942606889 scopus 로고    scopus 로고
    • note
    • However, other conformations (glide plane, coil,...) could possibly be more stable than planar TC chains.
  • 34
    • 2942546874 scopus 로고    scopus 로고
    • note
    • Other types of calculation methods could be used to obtain the charges, such as the well-known Merz-Singh-Kollman scheme (so-called MK or ESP charges). Test calculations reveal that the use of MK charges does not lead to different qualitative conclusions.
  • 35
    • 2942603754 scopus 로고    scopus 로고
    • note
    • See EPAPS Document No. E-JCPSA6-120-307417 for the 6-31G values. A direct link to this document may be found in the online articles HTML reference section. The document may also be reached via the EPAPS homepage (http://www.aip.org/pubservs/epaps.html) or from ftp.aip.org in the directory /epaps/. See the EPAPS homepage for more information.
  • 36
    • 2942515477 scopus 로고    scopus 로고
    • note
    • Nevertheless, this agreement between ab initia and semi-emperical results is probably originating from a fortuitous cancellation of different errors.
  • 37
    • 2942576935 scopus 로고    scopus 로고
    • note
    • These ordering are based on MP2/6-31G* results.
  • 38
    • 2942522014 scopus 로고    scopus 로고
    • note
    • L is within 13% (4%) of the corresponding MP2/6-31G(d)//HF/6-31G(d) values.
  • 39
    • 2942611656 scopus 로고    scopus 로고
    • note
    • L.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.