摘要:

Angular and velocity distribution measurements of HOBr reactive scattering from crossed beams of OH radicals and Br2molecules are reported. The OH radical beam was generated by the reaction of H atoms, formed in a microwave discharge through a low pressure flow of H2, with NO2gas in a pyrex mixing source. The Br2beam was generated from a supersonic nozzle source at ∼400 K with a stagnation pressure ∼100 Torr. Product velocity distributions were measured at each laboratory scattering angle by the cross-correlation time-of-flight method. The scattering data are found to be in good agreement with the RRKM-AM model of reactive scattering via a long-lived collision complex, with similar parameters to the O + Br2, I2reactions. This indicates the existence of an HOBrBr collision complex, whose stability and possible structure are rationalized in terms of Walsh molecular orbital theory.

ISSN:0026-8976    

DOI:10.1080/00268978000101391

出版商:Taylor & Francis Group    

年代:1980

数据来源: Taylor

摘要:

A thin layer of hard discs has been studied by a mechanical simulation method. A solid-solid phase transition has been observed and recorded by a photographic method. A free volume calculation has been carried out, confirming the possibility of the transition.

ISSN:0026-8976    

DOI:10.1080/00268978000101401

出版商:Taylor & Francis Group    

年代:1980

数据来源: Taylor

ISSN:0026-8976    

DOI:10.1080/00268978000101411

出版商:Taylor & Francis Group    

年代:1980

数据来源: Taylor

ISSN:0026-8976    

DOI:10.1080/00268978000101421

出版商:Taylor & Francis Group    

年代:1980

数据来源: Taylor

ISSN:0026-8976    

DOI:10.1080/00268978000101431

出版商:Taylor & Francis Group    

年代:1980

数据来源: Taylor

ISSN:0026-8976    

DOI:10.1080/00268978000101441

出版商:Taylor & Francis Group    

年代:1980

数据来源: Taylor

ISSN:0026-8976    

DOI:10.1080/00268978000101451

出版商:Taylor & Francis Group    

年代:1980

数据来源: Taylor