The Rhodium(II) trifluoroacetate dimer with cas registry number of 31126-95-1, whose systematic name is acetic acid, trifluoro-, rhodium(2+) salt. And it is also named Rhodium(II) trifluoroacetate dimer, min. 95%. This chemical is blue green power. It can be dissolved slightly in water.

Physical properties about this chemical are: (1)ACD/LogP: 1.24; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -2.49; (4)ACD/LogD (pH 7.4): -2.51; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 37.3 Å²; (13)Enthalpy of Vaporization: 34.62 kJ/mol; (14)Vapour Pressure: 96.2 mmHg at 25°C.

When you are using this chemical, please be cautious about it as the following:
The Rhodium(II) trifluoroacetate dimer irritates to eyes, respiratory system and skin. When use it, wear suitable protective clothing, gloves and eye/face protection. If contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure: 
(1)SMILES:[Rh+2].[Rh+2].O=C([O-])C(F)(F)F.FC(F)(F)C([O-])=O.FC(F)(F)C([O-])=O.FC(F)(F)C([O-])=O;
(2)InChI:InChI=1/4C2HF3O2.2Rh/c4*3-2(4,5)1(6)7;;/h4*(H,6,7);;/q;;;;2*+2/p-4;
(3)InChIKey:PQEXTYUESSEHKW-XBHQNQODAE;
(4)Std. InChI:InChI=1S/4C2HF3O2.2Rh/c4*3-2(4,5)1(6)7;;/h4*(H,6,7);;/q;;;;2*+2/p-4;
(5)Std. InChIKey:PQEXTYUESSEHKW-UHFFFAOYSA-J.