Lanthanum dibromide complexes of sterically demanding aminopyridinato and amidinate ligands

Winfried P. Kretschmer; Auke Meetsma; Bart Hessen; Natalie M. Scott; Sadaf Qayyum; Rhett Kempe

doi:10.1002/zaac.200600142

Lanthanum dibromide complexes of sterically demanding aminopyridinato and amidinate ligands

Winfried P. Kretschmer^*
, Auke Meetsma
, Bart Hessen
, Natalie M. Scott
, Sadaf Qayyum
, Rhett Kempe

^*Corresponding author voor dit werk

Onderzoeksoutput: Article › Academic › peer review

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It is report on synthesis and structure of Ap*LaBr2(THF)(3) and Am*LaBr2(THF)(3) (Ap*-H = {(2,6-diisopropyl-phenyl)-[6-(2,4,6-triisopropyl-phenyl)-pyridin-2-yl]-amine 1, Am*-H = N,N'-bis-(2,6-diisopropylphenyl)benzamidine). X-ray crystal structure analyses of the two seven coordinated complexes were carried out to compare the steric demand of the two amido ligands. A similar overall primary coordination site bulkiness for both ligands and distinct differences regarding this bulkiness for different directions were observed. A better shielding of the second coordination sphere was observed for the aminopyridinate.

Originele taal-2	English
Pagina's (van-tot)	1936-1938
Aantal pagina's	3
Tijdschrift	Zeitschrift fur Anorganische und Allgemeine Chemie
Volume	632
Nummer van het tijdschrift	12-13
DOI's	https://doi.org/10.1002/zaac.200600142
Status	Published - 2006
Evenement	Rare Earths 2005 Conference - , Germany Duur: 30-nov.-2005 → 2-dec.-2005

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CCDC 602602: Experimental Crystal Structure Determination
Kretschmer, W. (Contributor), Meetsma, A. (Contributor), Hessen, B. (Contributor), Scott, N. M. (Contributor), Qayyum, S. (Contributor) & Kempe, R. (Contributor), University of Groningen, 22-mrt.-2006
DOI: 10.5517/ccn71sp
Dataset
CCDC 602184: Experimental Crystal Structure Determination
Kretschmer, W. (Contributor), Meetsma, A. (Contributor), Hessen, B. (Contributor), Scott, N. M. (Contributor), Qayyum, S. (Contributor) & Kempe, R. (Contributor), University of Groningen, 18-mrt.-2006
DOI: 10.5517/ccn6m9r
Dataset

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@article{42ab9cef991f46b8befafd7e181e4e35,

title = "Lanthanum dibromide complexes of sterically demanding aminopyridinato and amidinate ligands",

abstract = "It is report on synthesis and structure of Ap*LaBr2(THF)(3) and Am*LaBr2(THF)(3) (Ap*-H = \{(2,6-diisopropyl-phenyl)-[6-(2,4,6-triisopropyl-phenyl)-pyridin-2-yl]-amine 1, Am*-H = N,N'-bis-(2,6-diisopropylphenyl)benzamidine). X-ray crystal structure analyses of the two seven coordinated complexes were carried out to compare the steric demand of the two amido ligands. A similar overall primary coordination site bulkiness for both ligands and distinct differences regarding this bulkiness for different directions were observed. A better shielding of the second coordination sphere was observed for the aminopyridinate.",

keywords = "amidinate ligands, aminopyridinato ligands, lanthanides, lanthanum, COORDINATION CHEMISTRY, YTTRIUM ALKYL, POLYMERIZATION, CATALYSTS, METALS",

author = "Kretschmer, \{Winfried P.\} and Auke Meetsma and Bart Hessen and Scott, \{Natalie M.\} and Sadaf Qayyum and Rhett Kempe",

year = "2006",

doi = "10.1002/zaac.200600142",

language = "English",

volume = "632",

pages = "1936--1938",

journal = "Zeitschrift fur Anorganische und Allgemeine Chemie",

issn = "0044-2313",

publisher = "WILEY-V C H VERLAG GMBH",

number = "12-13",

note = "Rare Earths 2005 Conference ; Conference date: 30-11-2005 Through 02-12-2005",

}

TY - JOUR

T1 - Lanthanum dibromide complexes of sterically demanding aminopyridinato and amidinate ligands

AU - Kretschmer, Winfried P.

AU - Meetsma, Auke

AU - Hessen, Bart

AU - Scott, Natalie M.

AU - Qayyum, Sadaf

AU - Kempe, Rhett

PY - 2006

Y1 - 2006

N2 - It is report on synthesis and structure of Ap*LaBr2(THF)(3) and Am*LaBr2(THF)(3) (Ap*-H = {(2,6-diisopropyl-phenyl)-[6-(2,4,6-triisopropyl-phenyl)-pyridin-2-yl]-amine 1, Am*-H = N,N'-bis-(2,6-diisopropylphenyl)benzamidine). X-ray crystal structure analyses of the two seven coordinated complexes were carried out to compare the steric demand of the two amido ligands. A similar overall primary coordination site bulkiness for both ligands and distinct differences regarding this bulkiness for different directions were observed. A better shielding of the second coordination sphere was observed for the aminopyridinate.

AB - It is report on synthesis and structure of Ap*LaBr2(THF)(3) and Am*LaBr2(THF)(3) (Ap*-H = {(2,6-diisopropyl-phenyl)-[6-(2,4,6-triisopropyl-phenyl)-pyridin-2-yl]-amine 1, Am*-H = N,N'-bis-(2,6-diisopropylphenyl)benzamidine). X-ray crystal structure analyses of the two seven coordinated complexes were carried out to compare the steric demand of the two amido ligands. A similar overall primary coordination site bulkiness for both ligands and distinct differences regarding this bulkiness for different directions were observed. A better shielding of the second coordination sphere was observed for the aminopyridinate.

KW - amidinate ligands

KW - aminopyridinato ligands

KW - lanthanides

KW - lanthanum

KW - COORDINATION CHEMISTRY

KW - YTTRIUM ALKYL

KW - POLYMERIZATION

KW - CATALYSTS

KW - METALS

U2 - 10.1002/zaac.200600142

DO - 10.1002/zaac.200600142

M3 - Article

SN - 0044-2313

VL - 632

SP - 1936

EP - 1938

JO - Zeitschrift fur Anorganische und Allgemeine Chemie

JF - Zeitschrift fur Anorganische und Allgemeine Chemie

IS - 12-13

T2 - Rare Earths 2005 Conference

Y2 - 30 November 2005 through 2 December 2005

ER -

Lanthanum dibromide complexes of sterically demanding aminopyridinato and amidinate ligands

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CCDC 602602: Experimental Crystal Structure Determination

CCDC 602184: Experimental Crystal Structure Determination

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