Ethyleneglycol tungsten complexes of calix[6 and 8]arenes: synthesis, characterization and ROP of ε-caprolactone.
Li, Yuanzhuo; Zhao, Ke-Qing; Feng, Chun; Elsegood, Mark R. J.; Prior, Timothy J.; Sun, Xinsen; Redshaw, Carl; Dalton transactions (Cambridge, England : 2003) 43 (2014) 13612–13619; doi:10.1039/c4dt01936a

data_7031769
_publ_section_title
;
 Ethyleneglycol tungsten complexes of calix[6 and 8]arenes: synthesis,
 characterization and ROP of \e-caprolactone.
;
_journal_issue                   36
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              13612
_journal_page_last               13619
_journal_paper_doi               10.1039/c4dt01936a
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C70 H86 O11 W2'
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CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
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CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
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_computing_data_reduction
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CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution
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SHELXS, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_diffrn_ambient_temperature      293(2)
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_diffrn_measurement_device_type  'Xcalibur, Eos'
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_diffrn_radiation_type           MoK\a
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_diffrn_reflns_av_sigmaI/netI    0.0580
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CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
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Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
Max/min transmission 1 0.69953
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_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.145
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_exptl_crystal_description       block
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_exptl_crystal_size_max          0.29
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_refine_ls_matrix_type           full
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_refine_ls_number_reflns         6695
_refine_ls_number_restraints     55
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_refine_ls_R_factor_all          0.0448
_refine_ls_R_factor_gt           0.0364
_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^)+(0.0422P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0841
_refine_ls_wR_factor_ref         0.0881
_reflns_number_gt                5824
_reflns_number_total             6695
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt01936a2.cif
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_cod_depositor_comments
'Adding full bibliography for 7031769--7031773.cif.'
_cod_original_cell_volume        4253.7(2)
_cod_database_code               7031769