The X-ray structure determinations show that 1,4,8,11-tetraazacyclotetradecane-1,8-bis(methylphosphonic) acid H 4 L forms both cis-and trans-O,O isomeric complexes with Co(III). Orientation of the other donor atoms indicates the formation of cis-O1,O2-trans-N1,N8-cis-O1, ]. The kinetically preferred
Unusual cis/trans Isomerism in Octahedral Nickel(II) Complexes with 1,4,8,11-Tetraazacyclotetradecane-1,8-bis(methylphosphonic Acid) as a Ligand
✍ Scribed by Kotek, Jan; Vojtíšek, Pavel; Císařová, Ivana; Hermann, Petr; Lukeš, Ivan
- Book ID
- 120400112
- Publisher
- UOCHB
- Year
- 2001
- Tongue
- English
- Weight
- 268 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0010-0765
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Isomeric cis-2, 9-bis(aminomethyl)-5,7,7,12,14,14-hexameth-in the Ni configuration, which is accompanied by a concomitant change of the macrocycle conformation from a yl-1,4,8,11-tetraazacyclotetradecanes (6a and 6b) and their octahedral (4) and square-planar nickel(II) complexes ( 5) folded to a p
## Abstract A series of tetra‐__N__‐alkylated 1,4,8,11‐tetraazacyclotetradecanes have been synthesized and their complexation potential towards Ni^2+^ and Cu^2+^ studied. In the case of sterically demanding alkyl substituents, such as i‐Pr, PhCH~2~, or 2‐MeC~6~H~4~CH~2~, no metal complexes are form