
TY  - JOUR
A1  - Bernhardt, PV 
A1  - Lawrance, GA 
A1  - Skelton, BW 
A1  - White, AH 
T1  - Coordination of the Hexacyanoferrate(III) Anion to a Polyammonium Macrocycle. Crysta -Structure of [H<sub>4</sub>L]<sub>1.5</sub>[Fe(CN)<sub>6</sub>]<sub>2</sub> (L=6,13-Dimethyl-1,4,8,11-tetraaza-cyclotetradecane-6,13-diamine)
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1989
VL  - 42
IS  - 7
SP  - 1035
EP  - 1043
KW  - 
UR  - https://doi.org/10.1071/CH9891035 
N2  - Crystals of [H4L]1.5[Fe(CN)6]2.3H2O.&#190;HCN form readily from an aqueous solution of L=6HCI (L = 6,13-dimethyl-1,4,8,11- tetraazacyclotetradecane-6,13-diamine) and Na3 [Fe(CN)6]. The compound is monoclinic, space group P21/c, a 7.982(6), b 20.785(3), c 26.81(1) Å , &#946; 101.37(5), Z = 4. Protonation is complete at the terminal primary nitrogens, but in the ring one trans pair is protonated and the other not, with short trans H&#8230;H distances. Hydrogen-bonding interactions are a feature of the structure, but are concentrated more strongly at the terminal NH3+ groups. Interactions of [Fe(CN)6]3- nitrogens with both terminal amine protons and macrocycle ring amine protons are observed, and this structure represents a further example of a 'super complex' involving a complex anion and a protonated polyaza macrocycle. 
ER  -

