Scalable Bulk Synthesis of Phase-Pure γ-SnN as a Model for an Argon-Flow-Mediated Metathesis Reaction.

Nitrides represent a promising class of materials for a variety of applications. However, bulk synthesis remains a challenging task due to the stability of the N molecule. In this study, we introduce a simple and scalable approach for synthesizing nitride bulk materials.

Perovskite-Like Carbodiimides (NCN): Synthesis and Characterization of MnHf(NCN) and FeHf(NCN).

Two novel ternary air-stable transition-metal carbodiimides, MnHf(NCN) and FeHf(NCN), were synthesized via solid-state metathesis using either ZnNCN or NaNCN as the carbodiimide source and the corresponding binary metal chlorides. These two phases are the first examples of transition-metal carbodiimides with an (NCN) composition, akin to ubiquitous O perovskite oxides. The crystal structure of MnHf(NCN) was determined and refined from powder X-ray diffraction (XRD) data in the non-centrosymmetric space group 622 allowing for chirality, the assignment of which is supported by second-harmonic generation (SHG) measurements.

Mixed Tin Valence in the Tin(II/IV)-Nitridophosphate SnPN.

SnPN combines the structural versatility of nitridophosphates and Sn within one compound. It was synthesized as dark gray powder in a high-pressure high-temperature reaction at 800 °C and 6 GPa from SnN and PN. The crystal structure was elucidated from single-crystal diffraction data (space group C2/m (no.

Synthesis and Investigation of a Soluble Distannene with no Trans-Bent Angle or Twisting in the Solid-State.

By treating KSiPr with Sn[N(SiMe)] the distannene Sn(TIPS) (TIPS=SiPr) is formed in a metathesis reaction. The crystal structure analysis of Sn(TIPS) reveals a planar arrangement of the substituents in the solid-state and hence the second planar alkene like distannene of its kind. Due to the TIPS substituents, Sn(TIPS) is well soluble in all commonly used organic solvents, opening the door for various analytics and reactivity studies.

Bis(tetrelocenes) - fusing tetrelocenes into close proximity.

We report the synthesis and structure of two bis(germanocenes) and a bis(stannocene), obtained by the reaction of unsymmetric bis(cyclopentadienyl) ligands with germanium and tin dichloride. DFT calculations show that the formation of these bis(tetrelocenes) is energetically favoured over the formation of the corresponding [1]tetrelocenophanes. In the crystal structure authenticated structural motif, the two tetrel(II) centers are forced into close proximity to each other, resulting in weak donor-acceptor interactions, according to Natural Bond Orbital (NBO) and Atoms in Molecules (AIM) analyses.

Switching Lead for Tin in PbHfO : Noncubic Structure of SnHfO.

The removal of lead from commercialized perovskite-oxide-based piezoceramics has been a recent major topic in materials research owing to legislation in many countries. In this regard, Sn(II)-perovskite oxides have garnered keen interest due to their predicted large spontaneous electric polarizations and isoelectronic nature for substitution of Pb(II) cations. However, they have not been considered synthesizable owing to their high metastability.

Bis(di--butylindenyl)tetrelocenes.

The synthesis and characterization of bis(di--butylindenyl) germanium(II), tin(II) and lead(II) complexes are reported, which includes the first structurally authenticated example of a bis(indenyl)germanocene. The species were studied in detail in solution and in the solid, which includes single crystal X-ray diffraction and NMR spectroscopy, as well as Mössbauer spectroscopy of the tin compound.

Direct β-C(sp)-H Acetoxylation of Aliphatic Carboxylic Acids.

The controlled construction of defined oxidation patterns is one of the key aspects in the synthesis of natural products and bioactive molecules. Towards this goal, we herein report a novel protocol for the Pd-catalyzed direct β-C(sp)-H acetoxylation of aliphatic carboxylic acids. The protocol enables the use of free carboxylic acids in one step and without the need of introducing specialized strong directing groups.