A theobromine derived silver N-heterocyclic carbene: synthesis, characterization, and antimicrobial efficacy studies on cystic fibrosis relevant pathogens
Panzner, Matthew J.; Hindi, Khadijah M.; Wright, Brian D.; Taylor, Jane B.; Han, Daniel S.; Youngs, Wiley J.; Cannon, Carolyn L.; Dalton Transactions  (2009) 7308–7313; doi:10.1039/b907726j

data_7030540
_publ_section_title
;
 A theobromine derived silver N-heterocyclic carbene: synthesis,
 characterization, and antimicrobial efficacy studies on cystic
 fibrosis relevant pathogens
;
_journal_coden_ASTM              DTARAF
_journal_issue                   35
_journal_name_full               'Dalton Transactions'
_journal_page_first              7308
_journal_page_last               7313
_journal_paper_doi               10.1039/b907726j
_journal_year                    2009
_chemical_formula_moiety         'C12 H17 Ag N4 O5'
_chemical_formula_sum            'C12 H17 Ag N4 O5'
_chemical_formula_weight         405.17
_chemical_name_common
;
1-(2-hydroxyethyl)-3,7,9-trimethylxanthin-8-ylidene silver acetate
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 94.104(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   23.896(3)
_cell_length_b                   8.2797(11)
_cell_length_c                   14.8598(19)
_cell_measurement_reflns_used    2602
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.77
_cell_measurement_theta_min      2.60
_cell_volume                     2932.5(7)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_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  0.0476
_diffrn_reflns_av_sigmaI/netI    0.0450
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            11365
_diffrn_reflns_theta_full        26.30
_diffrn_reflns_theta_max         26.30
_diffrn_reflns_theta_min         1.71
_exptl_absorpt_coefficient_mu    1.405
_exptl_absorpt_correction_T_max  0.9081
_exptl_absorpt_correction_T_min  0.5834
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_density_diffrn    1.835
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1632
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.07
_refine_diff_density_max         1.160
_refine_diff_density_min         -0.662
_refine_diff_density_rms         0.122
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.002
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     204
_refine_ls_number_reflns         2985
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.002
_refine_ls_R_factor_all          0.0528
_refine_ls_R_factor_gt           0.0388
_refine_ls_shift/su_max          0.016
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0509P)^2^+4.6727P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0904
_refine_ls_wR_factor_ref         0.0974
_reflns_number_gt                2407
_reflns_number_total             2985
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7002087
_cod_data_source_file            b907726j.txt
_cod_data_source_block           SCC8
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7030540