Di- and Triammonium Salts of Carbamoyldicyanomethanide, C(CN)2(CONH2)−: Layered Organic Architectures
Turner, David R.; Batten, Stuart R.; Crystal Growth & Design 10 (2010) 2501–; doi:10.1021/cg900783k

data_4502245
_publ_section_title
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 Di- and Triammonium Salts of Carbamoyldicyanomethanide,
 C(CN)2(CONH2)&#x2212;: Layered Organic Architectures
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_journal_issue                   6
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              2501
_journal_paper_doi               10.1021/cg900783k
_journal_volume                  10
_journal_year                    2010
_chemical_formula_moiety         'C4 H14 N2, 2(C4 H2 N3 O)'
_chemical_formula_sum            'C12 H18 N8 O2'
_chemical_formula_weight         306.34
_chemical_name_common            '[H3N(CH2)4NH3](cdm)2'
_chemical_name_systematic
;
 [H3N(CH2)4NH3](cdm)2
;
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                99.425(7)
_cell_angle_beta                 107.115(8)
_cell_angle_gamma                112.865(5)
_cell_formula_units_Z            1
_cell_length_a                   7.4907(7)
_cell_length_b                   7.5447(7)
_cell_length_c                   7.9976(13)
_cell_measurement_reflns_used    1941
_cell_measurement_temperature    123(1)
_cell_measurement_theta_max      24.99
_cell_measurement_theta_min      3.09
_cell_volume                     377.66(9)
_computing_cell_refinement       'Bruker SMART (Bruker)'
_computing_data_collection       'Bruker SMART (Bruker)'
_computing_data_reduction        'Bruker SAINT (Bruker)'
_computing_molecular_graphics    'X-Seed (Barbour, 1999)'
_computing_publication_material  'CIFTAB (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(1)
_diffrn_measured_fraction_theta_full 0.908
_diffrn_measured_fraction_theta_max 0.908
_diffrn_measurement_device_type  'Bruker X8 Apex II CCD'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0170
_diffrn_reflns_av_sigmaI/netI    0.0336
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            1941
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         3.09
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  0.9902
_exptl_absorpt_correction_T_min  0.9806
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.347
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             162
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.623
_refine_diff_density_min         -0.468
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     120
_refine_ls_number_reflns         1198
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0743
_refine_ls_R_factor_gt           0.0583
_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^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1324
_refine_ls_wR_factor_ref         0.1429
_reflns_number_gt                957
_reflns_number_total             1198
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg900783k_si_001.cif
_cod_data_source_block           3
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        377.66(8)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4502245