W. Cen et al., FORMATION OF A HIGH SURFACE-AREA, REGULAR POROUS SOLID FROM THE CLUSTER OF CLUSTERS, ZN4IIO[(CO)9CO3CCO2]6, Journal of organometallic chemistry, 449(1-2), 1993, pp. 19-25
The discrete molecular cluster of clusters, Zn4(II)O[(CO)9Co3CCO2]6 (1
), undergoes thermolysis with the sequential loss of 54 CO and 6 CO2 m
olecules without fusion resulting in the formation of a porous solid p
roduct. Density (fluid displacement and single crystal dimensions) and
BET surface area measurements confirm the porous nature of the materi
al. The calculated pore dimensions and regularity is corroborated by T
EM of thermolyzed films supported on carbon. The formation of an alpha
-Co phase is detectable by XRD and electron diffraction with crystalli
te size increasing with increasing heating temperature. The metallic n
ature of the cobalt environment is demonstrated by XPS of the films. D
ensification of the material occurs above 300-degrees-C with significa
nt loss of surface area.