Area negative thermal expansion in a mixed metal mixed organic MOF: “elevator-platform” mechanism induced by O‒H⋯O hydrogen bonding
Shrivastava, Ashutosh; Negi, Lalita; Das, Dinabandhu; CrystEngComm 20 (2018) 4719–; doi:10.1039/C8CE00939B

data_7231155
_publ_section_title
;
 Area negative thermal expansion in a mixed metal mixed organic MOF:
 &#x201C;elevator-platform&#x201D; mechanism induced by O--H&#x22EF;O
 hydrogen bonding
;
_journal_issue                   33
_journal_name_full               CrystEngComm
_journal_page_first              4719
_journal_paper_doi               10.1039/C8CE00939B
_journal_volume                  20
_journal_year                    2018
_chemical_formula_moiety         'C22 H26 Co N2 O20 Zn2, 4(H2 O)'
_chemical_formula_sum            'C22 H34 Co N2 O24 Zn2'
_chemical_formula_weight         900.18
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2018-07-02 deposited with the CCDC.
2018-07-16 downloaded from the CCDC.
;
_cell_angle_alpha                87.165(2)
_cell_angle_beta                 89.370(2)
_cell_angle_gamma                82.714(2)
_cell_formula_units_Z            1
_cell_length_a                   7.6514(4)
_cell_length_b                   10.1654(5)
_cell_length_c                   10.7076(5)
_cell_measurement_reflns_used    9980
_cell_measurement_temperature    320(2)
_cell_measurement_theta_max      28.31
_cell_measurement_theta_min      2.68
_cell_volume                     825.09(7)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX III'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'X-Seed (Barbour 2017)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      320(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-III CMOS detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0247
_diffrn_reflns_av_unetI/netI     0.0143
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            33670
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         28.346
_diffrn_reflns_theta_min         1.904
_diffrn_source                   microfocus
_exptl_absorpt_coefficient_mu    2.039
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            pink
_exptl_crystal_density_diffrn    1.812
_exptl_crystal_density_meas      ?
_exptl_crystal_description       block
_exptl_crystal_F_000             459
_exptl_crystal_size_max          0.350
_exptl_crystal_size_mid          0.270
_exptl_crystal_size_min          0.260
_exptl_transmission_factor_max   0.7457
_exptl_transmission_factor_min   0.5970
_refine_diff_density_max         0.610
_refine_diff_density_min         -0.544
_refine_diff_density_rms         0.068
_refine_ls_extinction_coef       0.0090(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     291
_refine_ls_number_reflns         4108
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0287
_refine_ls_R_factor_gt           0.0248
_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^)+(0.0291P)^2^+0.8576P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0667
_refine_ls_wR_factor_ref         0.0700
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3743
_reflns_number_total             4108
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8ce00939b2.cif
_cod_data_source_block           1_320K
_cod_depositor_comments
;
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 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 7231150--7231161.cif.
;
_cod_database_code               7231155
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.536
_shelx_estimated_absorpt_t_max   0.619
_shelx_res_checksum              55585