Probing CH-π(alkyne) interactions in a series of ethynylferrocenes
McAdam, C. John; Cameron, Scott A.; Hanton, Lyall R.; Manning, Anthony R.; Moratti, Stephen C.; Simpson, Jim; CrystEngComm 14 (2012) 4369–; doi:10.1039/c2ce25267h

data_7208101
_publ_section_title
;
 Probing CH-\p(alkyne) interactions in a series of ethynylferrocenes
;
_journal_issue                   13
_journal_name_full               CrystEngComm
_journal_page_first              4369
_journal_paper_doi               10.1039/c2ce25267h
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety         'C24 H18 Fe2'
_chemical_formula_sum            'C24 H18 Fe2'
_chemical_formula_weight         418.08
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 114.247(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.6673(9)
_cell_length_b                   10.3305(6)
_cell_length_c                   12.8647(8)
_cell_measurement_reflns_used    1807
_cell_measurement_temperature    91(2)
_cell_measurement_theta_max      21.26
_cell_measurement_theta_min      2.63
_cell_volume                     1777.31(19)
_computing_cell_refinement       'APEX2 and SAINT (Bruker 2009)'
_computing_data_collection       'APEX2 (Bruker 2009)'
_computing_data_reduction        SAINT
_computing_molecular_graphics
;
SHELXTL (Sheldrick, 2008) and Mercury (Macrae et al., 2008)
;
_computing_publication_material
;
SHELXL-97, enCIFer (Allen et al., 2004), PLATON (Spek, 2009),
PublCIF (Westrip 2010)
;
_computing_structure_refinement
;
SHELXL-97 (Sheldrick, 2008) & TITAN (Hunter & Simpson, 1999)
;
_computing_structure_solution
;
SHELXS-97 (Sheldrick, 2008) & TITAN (Hunter & Simpson, 1999)
;
_diffrn_ambient_temperature      91(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEXII CCD area detector'
_diffrn_measurement_method       '\w 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  0.0691
_diffrn_reflns_av_sigmaI/netI    0.0421
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            13705
_diffrn_reflns_theta_full        21.55
_diffrn_reflns_theta_max         21.55
_diffrn_reflns_theta_min         1.52
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.636
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8014
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2009)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.562
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'irregular fragment'
_exptl_crystal_F_000             856
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.461
_refine_diff_density_min         -0.377
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.982
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         2051
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.982
_refine_ls_R_factor_all          0.0520
_refine_ls_R_factor_gt           0.0374
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0448P)^2^+2.5918P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0858
_refine_ls_wR_factor_ref         0.0946
_reflns_number_gt                1641
_reflns_number_total             2051
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c2ce25267h.txt
_cod_data_source_block           jm298
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7208101
_iucr_geom_hbonds_special_details
;
Cg is the centroid of the C26...C30 cyclopentadienyl ring.
;