Structure of isothiocyanatothiocyanato{3,15,21-triaza-6,9,12-trioxabicyclo[15.3.1]heneicosa-1(21),2,15,17,19-pentaene}lead(II)

Nowell, Ian W.

doi:10.1107/s0567740879008001

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X-ray Crystallography1

Lead(iv) Compounds1

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Cited by 12 publications

(2 citation statements)

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“…The geometry around metal ions such as Pb II and Bi III 16 can be very irregular, as seen in Fig. 2, where the co-ordination geometry around Pb II in its complex 32 [PbL 2 (SCN) 2 ] is shown. The position of the lone pair, as proposed here, is also shown.…”

Section: X-ray Crystallographymentioning

confidence: 99%

Synthesis, stability and structure of the complex of bismuth(III) with the nitrogen-donor macrocycle 1,4,7,10-tetraazacyclododecane. The role of the lone pair on bismuth(III) and lead(II) in determining co-ordination geometry

Luckay¹,

Cukrowski²,

Mashishi³

et al. 1997

J. Chem. Soc., Dalton Trans.

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Section: X-ray Crystallographymentioning

confidence: 99%

Synthesis, stability and structure of the complex of bismuth(III) with the nitrogen-donor macrocycle 1,4,7,10-tetraazacyclododecane. The role of the lone pair on bismuth(III) and lead(II) in determining co-ordination geometry

Luckay¹,

Cukrowski²,

Mashishi³

et al. 1997

J. Chem. Soc., Dalton Trans.

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“…Yellow Pb(tap)(NCS)(SCN) [83] has a Pb(ll) atom located non-centro-symmetrically within the macrocyclic cavity, being displaced below the ring and towards the N-donor sites, with a mean Pb-N of 261.7 pm which is significantly smaller than the mean Pb-0 distance of 306.1 pm. Both NCS groups are bonded to the Pb(ll) atom, one via the Ν atom (Pb-N = 261.9 (15) pm and the other via the S-atom (Pb-S = 296.4(5) pm) to complete five coordination about the lead atom.…”

Section: Lead(iv) Compoundsmentioning

confidence: 99%

Lead Coordination and Organometallic Compounds: Classification and Analysis of Crystallographic and Structural Data

Holloway¹,

Melnı́k²

1997

Main Group Metal Chemistry

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This review covers over three hundred and sixty coordination and organometallic complexes of lead. About 20% of these contain lead in its +4 oxidation state, of which one fifth are dilead(+6) units, and two are anionic clusters. The Pb(IV) derivatives are predominantly organometallic, many stabilized by sandwich ligation. The majority of the Pb(ll) compounds are typical coordination complexes. Mon-to polynuclear derivatives are found, with coordinations numbers from 2 to 12. The effect of the non bonded pair of valence electrons is observed in lower coordination number Pb(ll) complexes. Examples of distortion, geometric and coordination isomerism are observed. Factors affecting bond lengths and bond angles are discussed, and some ambiguities in coordination polyhedra are outlined.

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Template synthesis of macrocyclic systems based on di‐ and polyamines and polyfunctional dicarbonyl compounds

Gérbéléu

Arion

Burgess

1999

Template Synthesis of Macrocyclic Compounds

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Structure of isothiocyanatothiocyanato{3,15,21-triaza-6,9,12-trioxabicyclo[15.3.1]heneicosa-1(21),2,15,17,19-pentaene}lead(II)

Cited by 12 publications

References 3 publications

Synthesis, stability and structure of the complex of bismuth(III) with the nitrogen-donor macrocycle 1,4,7,10-tetraazacyclododecane. The role of the lone pair on bismuth(III) and lead(II) in determining co-ordination geometry

Synthesis, stability and structure of the complex of bismuth(III) with the nitrogen-donor macrocycle 1,4,7,10-tetraazacyclododecane. The role of the lone pair on bismuth(III) and lead(II) in determining co-ordination geometry

Lead Coordination and Organometallic Compounds: Classification and Analysis of Crystallographic and Structural Data

Template synthesis of macrocyclic systems based on di‐ and polyamines and polyfunctional dicarbonyl compounds

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