Metal-organic frameworks (MOFs) are a class of new porous materials which have been intensively studied in the last decade [1]. These compounds provide diverse and easily modifiable structures so that their applications in diverse fields like gas storage [2], catalysis [3], molecular separation [4], optics [5] and drug delivery [6] are promising. Herein, we report the synthesis, structure and properties of new lanthanides MOFs, obtained by using 1,3,5-tris(4-carboxyphenyl)-2,4,6-trimetylbenzene(H3L) as a linker. X-ray crystallography reveals isostructural lanthanide MOFs, Ln(L)(H2O)2 (Ln = La, Ce, Nd), that are obtained from the solvotermal synthesis in DMF, ethanol and water as solvents. All three compounds are stable up to 450°C and exhibit permanent porosity, with BET surface areas around 400 m2/g. Other properties (fluorescence, magnetism, etc.) are under investigation.