Glaser‒Eglinton‒Hay sp‒sp coupling and macrocyclization: construction of a new class of polyether macrocycles having a 1,3-diyne unit
Naveen, Naveen; Babu, Srinivasarao Arulananda; Kaur, Gurpreet; Aslam, Nayyar Ahmad; Karanam, Maheswararao; RSC Adv. 4 (2014) 18904–; doi:10.1039/C4RA02174F

data_7235620
_publ_section_title
;
 Glaser--Eglinton--Hay sp--sp coupling and macrocyclization: construction
 of a new class of polyether macrocycles having a 1,3-diyne unit
;
_journal_issue                   36
_journal_name_full               'RSC Adv.'
_journal_page_first              18904
_journal_paper_doi               10.1039/C4RA02174F
_journal_volume                  4
_journal_year                    2014
_chemical_formula_moiety         'C30 H32 O5'
_chemical_formula_sum            'C30 H32 O5'
_chemical_formula_weight         472.56
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2013-04-10T18:48:03-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                77.626(3)
_cell_angle_beta                 87.992(4)
_cell_angle_gamma                79.519(4)
_cell_formula_units_Z            4
_cell_length_a                   8.6914(9)
_cell_length_b                   12.4846(14)
_cell_length_c                   25.241(3)
_cell_measurement_temperature    298(2)
_cell_volume                     2630.6(5)
_computing_molecular_graphics
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
        J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
        J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement
;
        SHELXL, G.M. Sheldrick, Acta Cryst.
        2008). A64, 112-122
;
_computing_structure_solution
;
        SHELXS, G.M. Sheldrick, Acta Cryst.
        (2008). A64, 112-122
;
_diffrn_ambient_temperature      298
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.962
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1178
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            26776
_diffrn_reflns_theta_full        25
_diffrn_reflns_theta_max         25.48
_diffrn_reflns_theta_min         0.83
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.08
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.6563
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
        SADABS-2008/1 (Bruker,2008) was used for absorption correction.
        R(int) was 0.0879 before and 0.0728 after correction.
        The Ratio of minimum to maximum transmission is 0.8807.
        The \l/2 correction factor is 0.0015.
;
_exptl_crystal_density_diffrn    1.193
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1008
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.182
_refine_diff_density_min         -0.186
_refine_diff_density_rms         0.035
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.906
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     631
_refine_ls_number_reflns         9406
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.906
_refine_ls_R_factor_all          0.2986
_refine_ls_R_factor_gt           0.0712
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0726P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1421
_refine_ls_wR_factor_ref         0.2264
_reflns_number_gt                2473
_reflns_number_total             9406
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra02174f2.cif
_cod_data_source_block           nm819a
_cod_database_code               7235620