Access to diverse germylenes and a six-membered dialane with a flexible β-diketiminate

Pahar, Sanjukta; Swamy, V. S. V. S. N.; Das, Tamal; Gonnade, Rajesh G.; Vanka, Kumar; Sen, Sakya S.

doi:10.1039/d0cc05202g

Cited by 10 publications

(11 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Very recently, our group has shown the use of bidentate pyridylpyrrolido ligand for the stabilization of low‐valent chlorogermylene [53] . This work was extended by synthesizing its tin analogue [54] .…”

Section: The Hypersilyl Moiety In Compounds With Gr 14 Elements In Lo...mentioning

confidence: 99%

See 1 more Smart Citation

The Hypersilyl Substituent in Heavier Low‐Valent Group 14 Chemistry

2022

Self Cite

View full text Add to dashboard Cite

The isolation of unusual compounds with low‐valent main‐group elements would not have been possible without the development of a series of sterically demanding ligands with bulky substituents. While early literature recognizes the advent of the sterically demanding tris(trimethylsilyl)silyl (SiMe3)3Si‐group, also known as hypersilyl group, to stabilize species with new coordination modes for the main group elements, it has largely been more recent studies that have utilized this group for isolating stable compounds with low‐valent main‐group elements. Such compounds are not only interesting from the structure‐bonding point of view but showcase potential for small molecule activation under ambient conditions. This review will cover the recent developments in stabilizing unusual compounds with group 14 elements using the exceptionally strong σ‐donor properties and pronounced steric effects of the hypersilyl moiety, emphasizing their synthesis, structure, and reactivity.

show abstract

Section: The Hypersilyl Moiety In Compounds With Gr 14 Elements In Lo...mentioning

confidence: 99%

“…[52] Very recently, our group has shown the use of bidentate pyridylpyrrolido ligand for the stabilization of low-valent chlorogermylene. [53] This work was extended by synthesizing its tin analogue. [54] Further treating them with KSi(SiMe 3 ) 3 afforded the pyridylpyrrolido based hypersilylgermylene (116) and tin (117) (Scheme 38).…”

Section: Germanium and Tinmentioning

confidence: 99%

The Hypersilyl Substituent in Heavier Low‐Valent Group 14 Chemistry

2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…Additional coordination interactions between donor atoms and the vacant metal orbital provide another way of such stabilization. At the moment, a large number of tetrylenes based on bulky ligands without additional donor–acceptor interactions [ 2 ] and with auxiliary coordination to the low‐valent metal [ 2d,3 ] are known (Scheme 1).…”

Section: Introductionmentioning

confidence: 99%

Stable heterocyclic stannylene: The metal, ligand‐centered reactivity, and effective catalytic hydroboration of aldehydes

Arsenyeva

Klimashevskaya

Pashanova

et al. 2022

Applied Organom Chemis

View full text Add to dashboard Cite

A stable O,N‐heterocyclic stannylene 1 bearing novel tetradentate 2,4‐di‐tert‐butyl‐6‐((2‐(1‐((pyridin‐2‐ylmethyl)imino)ethyl)phenyl)amino)phenolate ligand (RAPH2) was synthesized and characterized. Complex 1 is monomeric in crystal and solution due to two additional intramolecular N → Sn donor–acceptor interactions. The diverse reactivity of compound 1 towards various iron carbonyl compounds was studied. Oxidative addition of [Fe2(μ‐S2)(CO)6]2 to the tin center of 1 resulted in a new six‐coordinate Sn(IV) compound 2 containing two Sn–S bonds. The reaction of 1 with Fe2(CO)9 led to the formation of a stable tin(II) adduct 3 – RAPSn‐Fe(CO)4. The interaction between 1 and [(η5‐C5H5)Fe(CO)2]2 resulted in a transformation of the ligand skeleton. During this reaction, the tin center is oxidized to the tetravalent state, and the donor ═N–CH2–Py group is converted into an anionic one with the loss of the methylene hydrogen atom. The molecular structures of all obtained compounds were determined by single‐crystal X‐ray diffraction. The novel stannylene 1 demonstrates striking activity in benzaldehydes' hydroboration reactions down to 0.02 mole percent of the catalyst loading under mild conditions.

show abstract

“…Nonetheless, we have recently prepared a series of germanium and tin compounds using this system. 15,16 Here, we have prepared two magnesium complexes (1 and 2) based on the 2,2 0 -pyridylpyrrolide ligand. Interestingly, both 1 and 2 are luminescent, and their luminescent properties originate from the inter/intra-ligand charge transfer.…”

mentioning

confidence: 99%

“…14 The Mg–N bond lengths are 2.063–2.075 Å, marginally shorter than the Mg–N bond lengths in β-diketiminato magnesium complexes. 15 Interestingly, there are three THF molecules in the asymmetric unit. Each magnesium centre is coordinated by a THF molecule.…”

mentioning

confidence: 99%