Crystal structure, Hirshfeld surface analysis, thermal behavior and IR investigation of a new organic selenate-selenide [C 3 H 12 N 2 ] 2 (SeO 4 )(SeO 3 )·4H 2 O

Propane-1,3-diammonium molybdate

“…Several crystal structures of salts containing the propane-1,3-diammonium dication are reported in the literature (e.g. Ayadi et al, 2017;Kamoun et al, 1992). Bond lengths and angles of the (C 3 H 12 N 2 ) 2+ cation in (I) are in accordance with those reported previously for other oxidometalate salts, such as {(C 3 H 12 N 2 )[Mo 3 O 10 ]Á2H 2 O} n (Ding et al, 2007) (Trabelsi et al, 2012).…”

“…Several crystal structures of salts containing the propane-1,3-diammonium dication are reported in the literature (e.g. Ayadi et al, 2017;Kamoun et al, 1992 (Trabelsi et al, 2012). A search of the Cambridge Structural Database (WebCSD; Thomas et al, 2010) revealed 30 crystal structures of salts involving the propane-1,3-diammonium cation associated with anions containing molybdenum.…”

Orbital Hybridization Induced by Double‐Anion Coordination to Enhance Room‐Temperature Ferromagnetic Response

“…[28] The weak peak at approximately 2900 cm À1 can be assigned to the C-H stretching vibrations from organic solvents adhered to the surface. [29][30][31] The peaks at approximately 1400 and 1100 cm À1 , represent O-H bending (in-plane) mode and stretching mode in the cobalt complex or benzene ring, respectively. [28] The additional peak at approximately 730 cm À1 is attributed to the Se─O bonding in the selenium-containing oxides formed during solvothermal treatment.…”

“…[28] The additional peak at approximately 730 cm À1 is attributed to the Se─O bonding in the selenium-containing oxides formed during solvothermal treatment. [31,32] Nevertheless, when thermal treatment temperature increases to 700 C, the characteristic peaks at 2900, 1400, and 1100 cm À1 are completely eliminated, and the peak at 730 cm À1 fades. Thus, we can deduce that the cobalt complex, and organic functional groups on the sample surface are almost decomposed for Co x Se y -700, avoiding the interference originating from foreign impurities to intrinsic magnetism.…”