The importance of an additional water bridge in making the exchange coupling of bis(μ-phenoxo) dinickel(ii)complexes ferromagnetic.
Biswas, Rituparna; Kar, Paramita; Song, You; Ghosh, Ashutosh; Dalton transactions (Cambridge, England : 2003) 40 (2011) 5324–5331; doi:10.1039/c0dt01585g

data_7015430
_publ_section_title
;
 The importance of an additional water bridge in making the exchange
 coupling of bis(\m-phenoxo) dinickel(ii)complexes ferromagnetic.
;
_journal_issue                   19
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5324
_journal_page_last               5331
_journal_paper_doi               10.1039/c0dt01585g
_journal_volume                  40
_journal_year                    2011
_chemical_formula_sum            'C38 H46 N4 Ni2 O7'
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_symmetry_space_group_name_Hall  '-P 2ybc'
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_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
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_cell_angle_beta                 98.113(2)
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_cell_length_b                   21.865(3)
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_computing_cell_refinement       'Bruker SMART'
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_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'BRUKER SMART ApexCCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
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_diffrn_reflns_limit_h_max       9
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_diffrn_reflns_limit_l_min       -23
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_diffrn_reflns_theta_max         24.55
_diffrn_reflns_theta_min         1.37
_diffrn_standards_decay_%        n/a
_diffrn_standards_interval_count n/a
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_diffrn_standards_number         n/a
_exptl_absorpt_coefficient_mu    1.055
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_exptl_absorpt_correction_T_min  0.7933
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.394
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
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_refine_ls_extinction_method     none
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_refine_ls_number_parameters     468
_refine_ls_number_reflns         6241
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_refine_ls_R_factor_all          0.0551
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_refine_ls_shift/su_max          0.056
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0450P)^2^+1.8691P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_threshold_expression     >2sigma(I)
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_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7015430