(2,3,7,8,12,13,17,18-Octaethylporphyrinato-κ⁴N)cobalt(II)–2-nitrobenzaldehyde (1/2)

Abstract

The asymmetric unit of the title compound, [Co(C36H44N4)]·2C7H5NO3, is composed of one half of the complex, arranged about an inversion center, and a complete 2-nitro­benzaldehyde (NBA) mol­ecule. The structure consists of columns that contain inter­leaved mol­ecules of NBA and [CoII(OEP)] (OEP is 2,3,7,8,12,13,17,18-octa­ethyl­porphyrin), which are stacked along the a axis. The CoII atom is involved in a π inter­action with the ring of the NBA mol­ecule with a centroid–metal distance of 3.508 (6) Å. There is an intra­molecular C—H⋯O hydrogen bond in the NBA mol­ecule.

A low-temperature n-propanol gas sensor based on TeO2 nanowires as the sensing layer

“…2 and 3. 24,25 The peaks at 636 and 681 cm À1 are attributed to axial symmetric and asymmetric stretching bands of v 2 (A 1 ) and v 6 (B 2 ), respectively. At a high temperature of 450 C, Te powders are vaporized to form the gaseous Te molecules, which subsequently react with oxygen in air to form the gaseous TeO 2 molecules.…”