Structural, Magnetic, and Spectroscopic Comparative Studies on Four New Derivatives of DIMMAL (2-Di1H-2-imidazolylmethylmalonate): A Novel Generator of Multidimensional Networks
Hugo Núñez; Lucía Soto; Juan Server-Carrió; Julia García-Lozano; Amparo Sancho; Rafael Acerete; Emilio Escrivà; Inorganic Chemistry 44 (2005) 4644–4655; doi:10.1021/ic048234x

data_4309038
_publ_section_title
;
Structural, Magnetic, and Spectroscopic Comparative Studies on Four New
Derivatives of DIMMAL (2-Di1H-2-imidazolylmethylmalonate): A Novel
Generator of Multidimensional Networks
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4644
_journal_page_last               4655
_journal_paper_doi               10.1021/ic048234x
_journal_volume                  44
_journal_year                    2005
_chemical_formula_sum            'C10 H12 N4 O5'
_chemical_formula_weight         268.24
_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   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                114.6590(10)
_cell_angle_beta                 101.6050(10)
_cell_angle_gamma                92.8550(10)
_cell_formula_units_Z            2
_cell_length_a                   7.2689(2)
_cell_length_b                   8.9484(2)
_cell_length_c                   9.7317(4)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      15
_cell_measurement_theta_min      7
_cell_volume                     557.12(3)
_computing_cell_refinement       'CAD4 EXPRESS'
_computing_data_collection       'CAD4 EXPRESS'
_computing_data_reduction        'XRAY76 (Stewart, 1976)'
_computing_molecular_graphics    'ORTEP3 (Farrugia, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altomare, 1994)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Enraf Nonius CAD4'
_diffrn_measurement_method       'Omega-2theta scans'
_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  0.0201
_diffrn_reflns_av_sigmaI/netI    0.0415
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            2210
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.37
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  90
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.130
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.599
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             280
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.182
_refine_diff_density_min         -0.252
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2185
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0577
_refine_ls_R_factor_gt           0.0368
_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^)+(0.0524P)^2^+0.0301P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0860
_refine_ls_wR_factor_ref         0.0936
_reflns_number_gt                1641
_reflns_number_total             2185
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic048234xsi20050411_071823_1.cif
_cod_data_source_block           H2DIMMAL.H2O
_cod_database_code               4309038