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Transition metal acetylide CoC 2 is highly absorbent of water due to its ionic character. In the anhydrous phase, CoC 2 forms NaCl-like cubic structure where the orientation of C22- dianions are disordered. Once the material is exposed to air or water, the lattice of CoC 2 is expanded anisotropically by the absorbed water, which restricts the orientation of C22- dianions. The...
Co-C 2 nanocluster magnets are formed in amorphous carbon by high pressure reaction of Co 4 (CO) 12 and CH 2 Cl 2 . The average size of the clusters is 12 nm. Structural characteristics are investigated by transmission electron microscope (TEM), electron energy loss spectroscopy (EELS), extended X-ray absorption fine structure (EXAFS) analyses, and infrared...
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