Synthesis and properties of 5,10,15,20-tetrakis[4-(alkoxysilyl)phenyl]porphyrins: an application of selective deprotection of benzaldehyde diethyl acetals in the presence of alkoxysilyl groups.
Ishida, Shintaro; Ito, Masayasu; Horiuchi, Hiroaki; Hiratsuka, Hiroshi; Shiraishi, Soshi; Kyushin, Soichiro; Dalton transactions (Cambridge, England : 2003) 39 (2010) 9421–9426; doi:10.1039/c0dt00427h

data_7026446
_publ_section_title
;
 Synthesis and properties of
 5,10,15,20-tetrakis[4-(alkoxysilyl)phenyl]porphyrins: an application of
 selective deprotection of benzaldehyde diethyl acetals in the presence of
 alkoxysilyl groups.
;
_journal_issue                   39
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9421
_journal_page_last               9426
_journal_paper_doi               10.1039/c0dt00427h
_journal_volume                  39
_journal_year                    2010
_chemical_formula_sum            'C64 H78 N4 O8 Si4'
_chemical_formula_weight         1143.66
_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                 109.8959(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   12.1499(9)
_cell_length_b                   15.7100(10)
_cell_length_c                   17.0267(13)
_cell_measurement_reflns_used    13666
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.8764
_cell_measurement_theta_min      6.4363
_cell_volume                     3056.0(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.976
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0300
_diffrn_reflns_av_sigmaI/netI    0.0431
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            16293
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         6.44
_exptl_absorpt_coefficient_mu    0.155
_exptl_absorpt_correction_T_max  0.9697
_exptl_absorpt_correction_T_min  0.9479
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   multi-scan
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.243
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             1220
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.457
_refine_diff_density_min         -0.406
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.187
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     367
_refine_ls_number_reflns         5855
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.187
_refine_ls_R_factor_all          0.0624
_refine_ls_R_factor_gt           0.0607
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0210P)^2^+3.9496P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1208
_refine_ls_wR_factor_ref         0.1217
_reflns_number_gt                5738
_reflns_number_total             5855
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt00427h.txt
_cod_data_source_block           it01a
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7026446