2-<i>tert</i>-Butyl-5-methyl-7,8-dihydro-6<i>H</i>-cyclopenta[<i>e</i>]pyrazolo[1,5-<i>a</i>]pyrimidine: molecular stacks built from C—H···π(pyrazole) hydrogen bonds and π–π stacking interactions
Portilla, Jaime; Quiroga, Jairo; Cobo, Justo; Glidewell, Christopher; Acta Crystallographica Section C 64 (2008) o471–o473; doi:10.1107/S010827010802266X

data_2016781
_publ_section_title
;2-<i>tert</i>-Butyl-5-methyl-7,8-dihydro-6<i>H</i>-cyclopenta[<i>e</i>]pyrazolo[1,5-<i>a</i>]pyrimidine:
 molecular stacks built from C---H&#x00B7;&#x00B7;&#x00B7;\p(pyrazole)
 hydrogen bonds and \p--\p stacking interactions
;
_journal_coeditor_code           SK3259
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o471
_journal_page_last               o473
_journal_paper_doi               10.1107/S010827010802266X
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C14 H19 N3'
_chemical_formula_moiety         'C14 H19 N3'
_chemical_formula_sum            'C14 H19 N3'
_chemical_formula_weight         229.32
_chemical_name_systematic
;
2-<i>tert</i>-Butyl-5-methyl-7,8-dihydro-6<i>H</i>-
cyclopenta[<i>e</i>]pyrazolo[1,5-<i>a</i>]pyrimidine
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                91.611(14)
_cell_angle_beta                 107.728(14)
_cell_angle_gamma                111.097(12)
_cell_formula_units_Z            2
_cell_length_a                   6.8665(6)
_cell_length_b                   9.4084(14)
_cell_length_c                   11.147(2)
_cell_measurement_reflns_used    2898
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      3.27
_cell_volume                     632.22(18)
_computing_cell_refinement       'DIRAX/LSQ (Duisenberg <i>et al.</i>,  2000)'
_computing_data_collection       'COLLECT (Hooft, 1999)'
_computing_data_reduction        'EVALCCD (Duisenberg <i>et al.</i>,  2003)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material
'SHELXL97 (Sheldrick, 2008) and PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement
'OSCAIL (McArdle, 2003) and SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR2004 (Burla <i>et al.</i>,  2005)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker--Nonius KappaCCD'
_diffrn_measurement_method       '\f and \w'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker--Nonius FR591 rotating anode'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0488
_diffrn_reflns_av_sigmaI/netI    0.0440
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            15695
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.27
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.073
_exptl_absorpt_correction_T_max  0.982
_exptl_absorpt_correction_T_min  0.966
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2003)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.205
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             248
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.290
_refine_diff_density_min         -0.287
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.108
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     158
_refine_ls_number_reflns         2898
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.108
_refine_ls_R_factor_all          0.1136
_refine_ls_R_factor_gt           0.0623
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0576P)^2^+0.6693P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1499
_refine_ls_wR_factor_ref         0.1799
_reflns_number_gt                1804
_reflns_number_total             2898
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sk3259.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               2016781
_cod_database_fobs_code          2016781