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- Title
Ring and Volcano Structures Formed by a Metal Dipyrromethene Complex.
- Authors
Seung Bae Son; Qing Miao; Ji-Young Shin; Dolphin, David; Jae Ryang Hahn
- Abstract
Dichloromethane liquid droplets containing a cobalt dipyrromethene trimer deposited on a graphite surface were found to form coffee ring, toroid ring, or volcano dot structures due to the redistribution of the solute during solvent evaporation. The shapes and size distributions of the ring structures depended on the drying temperature. The shape differences were attributed to the fact that the solvent evaporation rate controlled the self-assembly process that yielded the coffee stain and pinhole structures.
- Subjects
DIPYRRINS; ATOMIC force microscopy; TOROIDAL magnetic circuits; EVAPORATION (Chemistry); DICHLOROMETHANE
- Publication
Bulletin of the Korean Chemical Society, 2014, Vol 35, Issue 6, p1727
- ISSN
0253-2964
- Publication type
Article
- DOI
10.5012/bkcs.2014.35.6.1727