Tetraphenolate niobium and tantalum complexes for the ring opening polymerization of ε-caprolactone.
Al-Khafaji, Yahya; Sun, Xinsen; Prior, Timothy J.; Elsegood, Mark R. J.; Redshaw, Carl; Dalton transactions (Cambridge, England : 2003) 44 (2015) 12349–12356; doi:10.1039/c5dt00272a

data_7034091
_publ_section_title
;
 Tetraphenolate niobium and tantalum complexes for the ring opening
 polymerization of \e-caprolactone.
;
_journal_issue                   27
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12349
_journal_page_last               12356
_journal_paper_doi               10.1039/c5dt00272a
_journal_volume                  44
_journal_year                    2015
_chemical_formula_moiety         'C130 H179 Cl N Nb O8, 5(C2 H3 N)'
_chemical_formula_sum            'C140 H194 Cl N6 Nb O8'
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;
2015-01-15 deposited with the CCDC.
2015-02-18 downloaded from the CCDC.
;
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_exptl_absorpt_process_details
;
 R.H. Blessing, Acta Cryst. (1995), A51, 33-38
;
_exptl_crystal_colour            'pale yellow'
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'Re-crystallisation from solvent: acetonitrile'
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_refine_ls_structure_factor_coef Fsqd
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'w=1/[\s^2^(Fo^2^)+(0.0965P)^2^] where P=(Fo^2^+2Fc^2^)/3'
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'Adding full bibliography for 7034090--7034096.cif.'
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