Green synthesis and self-association of 2,4-diamino-1,3,5-triazine derivatives
Antonio de la Hoz; Maria del Carmen Mateo; Angel Diaz-Ortiz; Jose Elguero; Concepcion Foces-Foces; A.Moreno; Ana Sanchez-Migallon; Gema Valiente; New J.Chem.(Nouv.J.Chim.)  (2004) –; doi:

data_7050283
_publ_section_title
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Green synthesis and self-association of
2,4-diamino-1,3,5-triazine derivatives
;
_journal_name_full               'New J.Chem.(Nouv.J.Chim.)'
_journal_year                    2004
_chemical_formula_moiety         'C8 H14 N6'
_chemical_formula_sum            'C8 H14 N6'
_chemical_formula_weight         194.25
_chemical_melting_point          494.6(5)
_chemical_name_common            2,4-diamino-6-piperidino-1,3,5-triazine
_chemical_name_systematic
;
2,4-diamino-6-piperidino-1,3,5-triazine
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            12
_cell_length_a                   12.3025(13)
_cell_length_b                   12.0425(12)
_cell_length_c                   19.841(3)
_cell_measurement_reflns_used    ?
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      ?
_cell_measurement_theta_min      ?
_cell_volume                     2939.4(6)
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean ?
_diffrn_measurement_device_type  ?
_diffrn_measurement_method       ?
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0114
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            2498
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         1.95
_diffrn_standards_decay_%        ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_number         ?
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.9938
_exptl_absorpt_correction_T_min  0.9460
_exptl_absorpt_correction_type   ?
_exptl_absorpt_process_details   ?
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.317
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1248
_exptl_crystal_size_max          0.63
_exptl_crystal_size_mid          0.46
_exptl_crystal_size_min          0.07
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -10(10)
_refine_ls_extinction_coef       0.046(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.006
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     416
_refine_ls_number_reflns         2498
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.006
_refine_ls_R_factor_all          0.0680
_refine_ls_R_factor_gt           0.0596
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1537P)^2^+1.1911P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1591
_refine_ls_wR_factor_ref         0.1838
_reflns_number_gt                2264
_reflns_number_total             2498
_reflns_threshold_expression     >2sigma(I)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '221-222 C' was changed to '494.6(5)'
- it was converted from degrees Celsius(C) to Kelvins(K), the average
value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
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_cod_database_code               7050283