Crystalline forms
The invention relates to crystalline forms of N-[2-(2,4-dichlorophenyl)cyclobutyl]-2-(trifluoromethyl)pyridine-3-carboxamide of formula (I), compositions comprising said crystalline forms and methods of their use as nematicides or fungicides.
1. A crystalline form of N-[(1S,2S)-2-(2,4-dichlorophenyl)cyclobutyl]-2-(trifluoromethyl)pyridine-3-carboxamide of formula (I)
characterized by an X-ray powder diffraction pattern comprising four or more 2-theta angle values selected from the group of 6.1±0.2, 11.2±0.2, 14.0±0.2, 16.7±0.2, 17.2±0.2, 18.5±0.2, 20.8±0.2, 21.3±0.2, 22.3±0.2, 23.6±0.2, 23.9±0.2 and 24.5±0.2 at a temperature of 21-26° C.
2. The crystalline form according to claim 1 , characterized by an X-ray powder diffraction pattern comprising six or more 2-theta angle values selected from the group of 6.1±0.2, 11.2±0.2, 14.0±0.2, 16.7±0.2, 17.2±0.2, 18.5±0.2, 20.8±0.2, 21.3±0.2, 22.3±0.2, 23.6±0.2, 23.9±0.2 and 24.5±0.2 at a temperature of 21-26° C.
3. The crystalline form according to claim 1 ,
characterized by the following unit cell parameters:
a=15.52 ű0.01 Å, b=7.24 ű0.01 Å, c=16.64 ű0.01 Å, α=90°±0.01°, ß=105.03±0.01°, γ=90°±0.01°, Z=4.
4. The crystalline form according to claim 1 ,
wherein the melting peak is at about 65° C.
5. A crystalline form of cis-N-[2-(2,4-dichlorophenyl)cyclobutyl]-2-(trifluoromethyl)pyridine-3-carboxamide of formula (I)
characterized by an X-ray powder diffraction pattern comprising four or more 2-theta angle values selected from the group of 10.8±0.2, 14.5±0.2, 17.5±0.2, 19.0±0.2, 23.5±0.2, 24.5±0.2, 26.0±0.2, 30.2±0.2, 32.6±0.2, 33.3±0.2, 34.1±0.2 and 35.5±0.2 at a temperature of 21-26° C.
6. The crystalline form according to claim 5 , characterized by an X-ray powder diffraction pattern comprising six or more 2-theta angle values selected from the group of 10.8±0.2, 14.5±0.2, 17.5±0.2, 19.0±0.2, 23.5±0.2, 24.5±0.2, 26.0±0.2, 30.2±0.2, 32.6±0.2, 33.3±0.2, 34.1±0.2 and 35.5±0.2 at a temperature of 21-26° C.
7. The crystalline form according to claim 5 , wherein the melting peak is at about 85° C.
8. The crystalline form according to claim 5 , characterized by the following unit cell parameters:
a=7.27 ű0.01 Å, b=9.32 ű0.01 Å, c=14.11 ű0.01 Å, α=75.53°±0.01°, ß=87.03±0.01°, γ=71.48°±0.01°, Z=2.
9. An agricultural or pharmaceutical composition comprising the crystalline form according to claim 1 and at least one acceptable carrier or diluent.
10. The composition according to claim 9 , further comprising one or more insecticidally, acaricidally, nematicidally or fungicidally active agents.
11. A method of protecting crops of useful plants against damages caused by nematode pests, which comprises treating the plants or the locus thereof with a composition according to claim 9 .
12. A method of protecting a plant propagation material against damages caused by nematode pests, which comprises treating the material with a composition according to claim 9 .
13. A method of protecting crops of useful plants against damages caused by fungi, which comprises treating the plants or the locus thereof with a composition according to claim 9 .
14. A method of protecting plant propagation material against damages caused by fungi, which comprises treating this material with a composition according to claim 9 .