Synthesis and Spectroscopic and Structural Characterization of Two Novel Photoactivatable Ca2+ Compounds
Alessia Bacchi; Mauro Carcelli; Corrado Pelizzi; Giancarlo Pelizzi; Paolo Pelagatti; Dominga Rogolino; Matteo Tegoni; Cristiano Viappiani; Inorganic Chemistry 42 (2003) 5871–5879; doi:10.1021/ic034059t

data_4314223
_publ_section_title
;
 Synthesis and Spectroscopic and Structural Characterization of Two Novel
 Photoactivatable Ca2+ Compounds
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              5871
_journal_page_last               5879
_journal_paper_doi               10.1021/ic034059t
_journal_volume                  42
_journal_year                    2003
_chemical_formula_sum            'C24 H30 Ca2 N2 O20'
_chemical_formula_weight         746.66
_chemical_name_systematic
;
   ?
;
_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                91.168(2)
_cell_angle_beta                 94.070(2)
_cell_angle_gamma                105.891(2)
_cell_formula_units_Z            2
_cell_length_a                   8.3513(9)
_cell_length_b                   11.9930(10)
_cell_length_c                   16.433(2)
_cell_measurement_reflns_used    282
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      18
_cell_measurement_theta_min      5
_cell_volume                     1577.6(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 8.2
_diffrn_measured_fraction_theta_full 0.966
_diffrn_measured_fraction_theta_max 0.966
_diffrn_measurement_device_type  'Bruker AXS CCD diffractometer'
_diffrn_measurement_method       '\w scan'
_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  0.0169
_diffrn_reflns_av_sigmaI/netI    0.0327
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            9032
_diffrn_reflns_theta_full        26.40
_diffrn_reflns_theta_max         26.40
_diffrn_reflns_theta_min         1.77
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.452
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.851
_exptl_absorpt_correction_type
'symmetry-related measurements(SAINT-SADABS procedure)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.572
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             776
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.6
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.509
_refine_diff_density_min         -0.368
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     494
_refine_ls_number_reflns         6258
_refine_ls_number_restraints     15
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0560
_refine_ls_R_factor_gt           0.0411
_refine_ls_shift/su_max          0.060
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0768P)^2^+0.0068P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1143
_refine_ls_wR_factor_ref         0.1234
_reflns_number_gt                4774
_reflns_number_total             6258
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic034059t_1.cif
_cod_data_source_block           Ca(1)
_cod_database_code               4314223