Tris(trifluorophosphine)nitrosylcobalt and Bis(trifluorophosphine)dinitrosyliron
✍ Scribed by Dr. Th. Kruck; Dipl.-Chem. W. Lang
- Publisher
- John Wiley and Sons
- Year
- 1964
- Tongue
- English
- Weight
- 124 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
✦ Synopsis
gives yellow needles, m.p. 322--324 "C (from n-butanol), Amax (in chloroform): 242 my (log E = 4.59), 275 (4.47), 31 5 (shoulder), 368 (shoulder); broad band with indistinct structure at 405 my (log E = 4.10). It dissolves in conc. HlS04 to give a carmine-red solution, A , , , , (in H2SO4): 251 mp (log E = 4.68), 287 (4.26), 379 (4.1 I ) , 432 (4.04), (3) ( 4 ) H -c1040 + HLl=o 540 (4.15). The zwitterionic structure (4a) contributes to the ground-state of (4) as the vc-o-vibration occurs at 1639 cm-1 (in chloroform), i. 6'. at a much lower wavelength than that of derivatives of 10-methylencanthrone [2].