IM-16 crystallised solid and process for the preparation thereof

IM-16 crystallized solid having an X-ray diffraction pattern including at least the lines entered in the table below:

• 2 theta (°)
• dhkl (Å)
• I/I0
• 7.55
• 11.70
• ff
• 8.73
• 10.12
• FF
• 9.81
• 9.01
• f
• 10.74
• 8.23
• ff
• 11.59
• 7.63
• ff
• 13.15
• 6.73
• ff
• 14.53
• 6.09
• ff
• 15.13
• 5.85
• f
• 15.30
• 5.79
• ff
• 15.75
• 5.62
• ff
• 15.92
• 5.56
• ff
• 17.51
• 5.06
• ff
• 17.64
• 5.02
• ff
• 19.70
• 4.50
• ff
• 20.12
• 4.41
• ff
• 23.32
• 3.81
• f
• 23.73
• 3.75
• f
• 24.08
• 3.69
• mf
• 24.45
• 3.64
• ff
• 24.68
• 3.60
• ff
• 24.94
• 3.57
• f
• 25.25
• 3.52
• f
• 25.46
• 3.50
• ff
• 26.39
• 3.37
• f
• 26.96
• 3.31
• ff
• 28.61
• 3.12
• ff
• 29.74
• 3.00
• ff
• 30.88
• 2.89
• ff
• 31.05
• 2.88
• ff
• 31.81
• 2.81
• ff
• 32.16
• 2.78
• ff
• 34.61
• 2.59
• ff
• 35.29
• 2.54
• ff
• 35.49
• 2.53
• ff
• 36.86
• 2.44
• ff
• where FF = very high;
• m = medium;
• f = low;
• F = high;
• mf = medium low;
• ff = very low and having a chemical composition expressed by the following general formula:
• mXO2:nGeO2:pZ2O3:qR:sF:wH2O, wherein R represents one or more organic species, X represents one or more tetravalent elements different from germanium, Z represents at least one trivalent element and F is fluorine, m, n, p, q, s and w representing respectively the number of moles of XO2, GeO2, Z2O3, R, F and H2O and m is between 0.2 and 1, n is between 0 and 0.8, p is between 0 and 0.1, q is between 0 and 0.2, s is between 0 and 0.2 and w is between 0 and 0.2.