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Izvorni znanstveni članak
Matrix Isolation Infrared Spectra of Hydrogen Halide and Halogen Complexes with Nitrosyl Halides
Donald Lucas
; Department of Chemistry University of California Berkeley, California 94720
Louis J. Allamandola
; Department of Chemistry University of California Berkeley, California 94720
George C. Pimentel
; Department of Chemistry University of California Berkeley, California 94720
| Puni tekst: engleski, pdf (7 MB) | str. 121-128 | citiraj | |
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APA 6th Edition Lucas, D., Allamandola, L.J. i Pimentel, G.C. (1982). Matrix Isolation Infrared Spectra of Hydrogen Halide and Halogen Complexes with Nitrosyl Halides. Croatica Chemica Acta, 55 (1-2), 121-128. Preuzeto s https://hrcak.srce.hr/194284 MLA 8th Edition Lucas, Donald, et al. "Matrix Isolation Infrared Spectra of Hydrogen Halide and Halogen Complexes with Nitrosyl Halides." Croatica Chemica Acta, vol. 55, br. 1-2, 1982, str. 121-128. https://hrcak.srce.hr/194284. Citirano 27.02.2021. Chicago 17th Edition Lucas, Donald, Louis J. Allamandola i George C. Pimentel. "Matrix Isolation Infrared Spectra of Hydrogen Halide and Halogen Complexes with Nitrosyl Halides." Croatica Chemica Acta 55, br. 1-2 (1982): 121-128. https://hrcak.srce.hr/194284 Harvard Lucas, D., Allamandola, L.J., i Pimentel, G.C. (1982). 'Matrix Isolation Infrared Spectra of Hydrogen Halide and Halogen Complexes with Nitrosyl Halides', Croatica Chemica Acta, 55(1-2), str. 121-128. Preuzeto s: https://hrcak.srce.hr/194284 (Datum pristupa: 27.02.2021.) Vancouver Lucas D, Allamandola LJ, Pimentel GC. Matrix Isolation Infrared Spectra of Hydrogen Halide and Halogen Complexes with Nitrosyl Halides. Croatica Chemica Acta [Internet]. 1982 [pristupljeno 27.02.2021.];55(1-2):121-128. Dostupno na: https://hrcak.srce.hr/194284 IEEE D. Lucas, L.J. Allamandola i G.C. Pimentel, "Matrix Isolation Infrared Spectra of Hydrogen Halide and Halogen Complexes with Nitrosyl Halides", Croatica Chemica Acta, vol.55, br. 1-2, str. 121-128, 1982. [Online]. Dostupno na: https://hrcak.srce.hr/194284. [Citirano: 27.02.2021.] |
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Sažetak
Matrix isolation infrared spectra of nitrosyl halide (XNO)
complexes with HX and X2 (X = Cl, Br) are presented. The r elative
frequency shifts of the HX mode are modest (ClNO · H-Cl, !':..:v/v =
= - 0.045; BrNO·H-Br, Av/v = ·-0.026), indicating weak hydrogen
bonds 1-3 kcal/mo!. These shifts are accompanied by significant
shifts to higher frequencies in the XN-0 stretching mode
(CIN-O·HCl, Av/v = +0.016; BrN-O·HBr, Av/v = +0.011). Similar
.;hifts were observed for the XN-0 · X2 complexes (ClN-0 Cl2,
Aviv = +0.009; BrN-0-Br2, Av/v = +0.013). In all four complexes,
the X- NO stretching mode relative shift is opposite in sign and
about 1.6 times that of the NO stretching mode.
These four complexes are considered to be similar in structure
and charge distribution. The XN- 0 frequency shift suggests that
complex formation is accompanied by charge withdrawal from the
NO bond ranging from about .04 to .07 electron charges. The HX
and X2 molecules act as electron acceptors, drawing electrons out
of the antibonding orbital of NO and strengthening the XN-0
bond. The implications of the pattern of vibrational shifts concerning
the structure of the complexes are discussed.
Hrčak ID: 194284
URI
https://hrcak.srce.hr/194284
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