Mössbauer study of some biological iron complexes

SIKANDER ALI¹, ALIMUDDIN¹ and V R REDDY²

¹Department of Applied Physics, Z.H. College of Engineering \& Technology,

Aligarh Muslim University, Aligarh 202 002, India

²Inter University Consortium for DAE Facilities, Indore 452 017, India

E-mail: dralimuddin@yahoo.co.in; dr$_-$sikanderali@yahoo.co.in

Abstract. Some biological complexes containing iron are investigated

experimentally at room temperature using the M\"ossbauer resonance.

The complexes show quadrupole doublet and Kramer's degeneracy is

found to exist. The electric field gradient, difference in

$s$-electron densities and quadrupole coupling constant have been

calculated in each case. These parameters are used to obtain

information on the surroundings of the M\"ossbauer atom.

Keywords. Biological complexes; M\"ossbauer parameters; hyperfine

field parameters.

PACS Nos 76.80.+y; 33.45.+x