PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15278168-1 2004 A complex of cobalt(II)(OCN)(2) coordinated with four pyridines having a stable tert-butyl aminoxyl exhibited in frozen MTHF a slow magnetic relaxation for the reorientation of magnetization with activation barrier, Delta/k(B) = 50 K, and a hysteresis loop having a fast relaxation at 0 Oe below 2.5 K. Pyridines 54-63 bone gamma-carboxyglutamate protein Homo sapiens 24-27