A Unique Layered Cu-formate Hydrate of Cu(HCOO)2·1/3H2O: Structures, Dehydration, and Thermal and Magnetic Properties

A novel layered Cu-based perovskite metal–organic framework with 1,2-diaminoethane cations: synthesis, crystal structure, and thermal and magnetic properties

“…vibrations. 40 In addition to these bands, neighbouring weak ones appear in the range 2880-2800 cm −1 that can be attributed to the stretching vibrations of C-H group 𝑣 1 (HCOO) of the formate coordinating in anti-anti configuration and to some combinations and overtones of other 𝑣(HCOO) modes. Compared to IR-vibration bands in syn-syn mode for the metal-formate frameworks templated by 1,4-diaminobutane (NH 3 (CH 2 ) 4 NH 3 ) 2+ as cation, 33 these vibration bands are found to blue shift by 40 to 50 cm −1 as a result of the C-O short distance in the case of anti-anti bridging mode.…”