Über Verbindungen subvalenter Hauptgruppenmetallkationen mit Dithiolaten, 1. Mitteilung. Das dimorphe Blei(II)-l,l-dicyanoethylen-2,2-dithiolat: Darstellung und Kristallstrukturen / Compounds of Subvalent Main Group Metal Cations with Dithiolates, 1. Contribution. Dimorphie Lead(II) l,l-Dicyanoethylene-2,2-dithiolate: Preparation and Crystal Structures

Hummel, H.-U.; Meske, H.

doi:10.1515/znb-1988-0403

Cited by 12 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Comparatively, there are very few i -mnt-containing structures incorporating p-block metals, and none include bismuth. In fact, the only complexes with d 10 s 2 ions reported are those with Pb(II) centers, including two polymorphs of [Pb( i -mnt)] 2 , the dinuclear [Ph 4 As] 4 [Pb 2 ( i -mnt) 4 ], , and a pair of [K(18-crown-6)] 2 [Pb( i -mnt) 2 ] CPs, where the N-cyano groups bind to the potassium cation . Of particular interest is K 2 [Pb( i -mnt) 2 ], which forms a 1D chain, crystallizing in the polar C2 space group and featuring a stereochemically active lone pair on the Pb(II) center .…”

Section: Introductionmentioning

confidence: 99%

Structural Diversity of Iso-Maleonitrile Dithiolate d¹⁰s² Metal Complexes of Lead and Bismuth

Ho,

Pells,

Leznoff

2024

Crystal Growth & Design

View full text Add to dashboard Cite

The synthesis and solid-state structures of four structurally diverse i-mnt-based anionic complexes and coordination polymers are described (i-mnt = iso-maleonitrile dithiolate). ( n Pr 4 N) 4 [Pb 2 (i-mnt) 4 ] is dimeric, containing a fivecoordinate distorted square pyramidal Pb(II) center with a stereochemically active lone pair. The isoelectronic ( n Pr 4 N)[Bi(i-mnt) 2 ] is a distorted sixcoordinate complex that crystallizes in the polar P2 1 space group and forms a 2D coordination polymer via intermolecular Bi−N interactions; the d 10 s 2 Bi(III) center also has a hemidirectional coordination sphere with a stereochemically active lone pair. Using the more compact (Me 4 N) + cation, (Me 4 N) 2 [Pb(i-mnt) 2 ] contains eight-coordinate holodirectional Pb(II) centers that form 1D chains via bridging Pb−S bonding. These anionic complexes could provide the foundation to incorporate stereochemically active lone pairs into heterometallic coordination polymers. As a comparison, ( n Pr 4 N) 3 Cr(i-mnt) 3 •H 2 O was also prepared and has a propeller structure with a typical octahedral Cr(III) center.

show abstract

Section: Introductionmentioning

confidence: 99%

Structural Diversity of Iso-Maleonitrile Dithiolate d¹⁰s² Metal Complexes of Lead and Bismuth

Ho,

Pells,

Leznoff

2024

Crystal Growth & Design

View full text Add to dashboard Cite

show abstract

“…The chelating dithiolate ligands maleonitrile dithiolate (mnt) and iso -maleonitrile dithiolate ( i -mnt) (Figure ) have been of continuous interest, with research on their metal complexes − with particular focus on their noninnocence and how this affects the electronic structure and conductivity. − …”

Section: Introductionmentioning

confidence: 99%

Dichroic Palladium Dithiolate Coordination Polymers

Sergeenko

Paripovic

Bélanger-Desmarais

et al. 2023

Crystal Growth & Design

View full text Add to dashboard Cite

An isomorphous series of coordination polymers with the general formula M(H2O)4[Pd(iso-maleonitriledithiolate)2]·2H2O (M = Mn, Co, Zn) was structurally characterized. They exhibit a 1-D zig-zag chain structure which further interacts via hydrogen bonding to form a highly aligned 2-D array of 1-D chains in the solid state. Single crystals are moderately pigmented orange in color when viewed under unpolarized visible light, but under plane-polarized light, they are dichroic down the 001 face, with a change in color from red to yellow upon rotation by 90°. Solid-state polarized absorption and, for the Zn-analogue, unpolarized emission spectra are reported and assigned as an MLCT transition and a d–d transition involving an excited triplet state with the LUMO (dx 2-y 2) populated by one electron, respectively. These materials represent the first transition-metal coordination polymers that incorporate the [Pd(i-mnt)2]2– building block.

show abstract

Synthesen, Strukturen und thermische Abbaureaktionen von Tl^I‐, Pb^II‐ und Se^II‐Komplexen mit 2,2‐Dicyanethylen‐1,1‐diselenolat

Hummel

Fischer

et al. 1992

Chem. Ber.

View full text Add to dashboard Cite

Preparation, Structures, and Thermal Decomposition Reactions of Complexes Consisting of TlI, PbII, and SeII and 2,2‐Dicyanoethylene‐1,1‐diselenolate The 2,2‐dicyanoethylene‐1,1‐diselenolate‐containing compounds (AsPh4)2[Tl2(Se2C=C(CN)2)2], (AsPh4)2[Pb(Se2C=C‐(CN)2)2], and (NBu4)2[Se(Se2C=C(CN)2)2] have been prepared and characterized by single‐crystal structure analysis. The molecular structures of the complex anions 1–3 are significantly influenced by the presence of stereochemically active lone pairs. 1 is dimeric with an Se4Tl2 octahedral centre with a Tl–Tl distance of 3.547(4) Å and an average Tl–Se bond length of 3.143(4) Å. In 2 Pb constitutes the centre of a distorted pseudo‐trigonal bipyramid PbSe4E [Pb–Seave = 2.948(3) Å] with one equatorial position obviously occupied by the lonepair E. In 3 the ligands are coordinated to the central Se, which is situated in a centre of symmetry, in an undistorted way giving rise to a Ψ‐octahedral SeSe4E2 geometry [Se–Seave = 2.617(2) Å]. The compounds (AsPh4)2 · 1, (AsPh4)2 · 2 and (NBu4)2 · 3 have been decomposed thermally to yield TlSe, PbSe as well as Se. The observed contamination of TlSe and PbSe with As is avoided by using (NBu4)2 · 1 and (NBu4)2 · 2 as precursor materials.

show abstract

Cited by 12 publications

References 0 publications

Structural Diversity of Iso-Maleonitrile Dithiolate d¹⁰s² Metal Complexes of Lead and Bismuth

Structural Diversity of Iso-Maleonitrile Dithiolate d¹⁰s² Metal Complexes of Lead and Bismuth

Dichroic Palladium Dithiolate Coordination Polymers

Synthesen, Strukturen und thermische Abbaureaktionen von Tl^I‐, Pb^II‐ und Se^II‐Komplexen mit 2,2‐Dicyanethylen‐1,1‐diselenolat

Contact Info

Product

Resources

About

Cited by 12 publications

References 0 publications

Structural Diversity of Iso-Maleonitrile Dithiolate d10s2 Metal Complexes of Lead and Bismuth

Structural Diversity of Iso-Maleonitrile Dithiolate d10s2 Metal Complexes of Lead and Bismuth

Dichroic Palladium Dithiolate Coordination Polymers

Synthesen, Strukturen und thermische Abbaureaktionen von TlI‐, PbII‐ und SeII‐Komplexen mit 2,2‐Dicyanethylen‐1,1‐diselenolat

Contact Info

Product

Resources

About

Structural Diversity of Iso-Maleonitrile Dithiolate d¹⁰s² Metal Complexes of Lead and Bismuth

Structural Diversity of Iso-Maleonitrile Dithiolate d¹⁰s² Metal Complexes of Lead and Bismuth

Synthesen, Strukturen und thermische Abbaureaktionen von Tl^I‐, Pb^II‐ und Se^II‐Komplexen mit 2,2‐Dicyanethylen‐1,1‐diselenolat