The Dissocationi Energy and Heat of Formation of the Molecule NaCu-Reference-Cited by-同舟云学术

The Dissocationi Energy and Heat of Formation of the Molecule NaCu

Published:1973-02-01 Issue:2 Volume:28 Page:316-317
ISSN:1865-7109
Container-title:Zeitschrift für Naturforschung A
language:
Short-container-title:

Author:

Piacente Vincenzo¹,Gingerich Karl A.²

Affiliation:

1. 1Istituto di Chimica-Fisica, University of Rome, Rome, Italy

2. 2Department of Chemistry, Texas A & M University, College Station, Texas 77843, USA

Abstract

The reaction NaCu(g) = Na(g) + Cu(g) has been investigated by means of high-temperature mass-spectrometry, using a double oven technique. From the measured reaction enthalpy the dissociation energy D00(NaCu) = 41.2 ± 4.0 kcal mol-1 or 172.4 ± 16.7 kJ mol-1 and the standard heat of formation, ΔH0f, 298 [NaCu(g)] = 64.3 ± 4.4 kcal mol-1 or 269.0 ± 18.4 kJ mol-1 have been obtained. The experimental dissociation energy of NaCu(g) is markedly lower than the value of 54 kcal mol-1 calculated after the Pauling model of a polar single bond.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics

Link

https://www.degruyter.com/document/doi/10.1515/zna-1973-0230/pdf

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