Hg(II) and Pd(II) complexes with a new selenoether bridged biscarbene ligand: Efficient mono- and bis-arylation of methyl acrylate with a pincer biscarbene Pd(II) precatalyst
Dhiman, Rishu; Prashanth, Billa; Bawari, Deependra; Mandal, Ushnish; Verma, Aditya; Roychoudhury, Angshuman; Singh, Sanjay; Dalton Trans.  (2017) –; doi:10.1039/C6DT04505G

data_7042667
_publ_section_title
;
 Hg(II) and Pd(II) complexes with a new selenoether bridged biscarbene
 ligand: Efficient mono- and bis-arylation of methyl acrylate with a
 pincer biscarbene Pd(II) precatalyst
;
_journal_name_full               'Dalton Trans.'
_journal_paper_doi               10.1039/C6DT04505G
_journal_year                    2017
_chemical_formula_moiety         'C18 H14 O4'
_chemical_formula_sum            'C18 H14 O4'
_chemical_formula_weight         294.29
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2017-03-22
_audit_creation_method
;
Olex2 1.2
(compiled 2017.03.02 svn.r3394 for OlexSys, GUI svn.r5324)
;
_audit_update_record
;
2017-03-23 deposited with the CCDC.
2017-04-10 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 113.947(13)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   25.424(8)
_cell_length_b                   8.1347(17)
_cell_length_c                   15.680(4)
_cell_measurement_reflns_used    3658
_cell_measurement_temperature    296
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.2
_cell_volume                     2963.7(14)
_computing_cell_refinement
;
        CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)
;
_computing_data_collection
;
        CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)
;
_computing_data_reduction
;
        CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)
;
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_diffrn_ambient_temperature      296.0
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Rigaku Mercury375R (2x2 bin mode)'
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.2594
_diffrn_reflns_av_unetI/netI     0.1472
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            12921
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         25.374
_diffrn_reflns_theta_min         3.174
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.295
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
        Pflugrath, JW (1999) Acta Cryst. D55, 1718-1725.
       Although that is the official publication, Thad Niemeyer
       of Rigaku/MSC has re-written the bulk of the crystal-
       lographic code in d*TREK.  Robert Bolotovsky of Rigaku
       has made numerous contributions as well.  The reqab
       absorption correction algorithm is written by Robert
       Jacobson of Iowa State University.  The habscor absorption
       correction algorithm is written by Tsuneyuki Higashi
       of Rigaku.  We also want to acknowledge the works of many
       others.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_density_diffrn    1.3191
_exptl_crystal_description       block
_exptl_crystal_F_000             1232
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.268
_refine_diff_density_min         -0.279
_refine_diff_density_rms         0.076
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.096
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     200
_refine_ls_number_reflns         2713
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.096
_refine_ls_R_factor_all          0.0936
_refine_ls_R_factor_gt           0.0785
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0950P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2310
_refine_ls_wR_factor_ref         0.2427
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1881
_reflns_number_total             2713
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6dt04505g2.cif
_cod_data_source_block           2b
_cod_database_code               7042667
_shelx_shelxl_version_number     2014/7
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C1(H1), C3(H3), C4(H4), C6(H6), C7(H7), C10(H10), C11(H11), C13(H13),
 C14(H14), C15(H15), C16(H16)
2.b Idealised Me refined as rotating group:
 C18(H18A,H18B,H18C)
;
_olex2_submission_special_instructions 'No special instructions were received'