Boron triel bonding: a weak electrostatic interaction lacking electron-density descriptors

We report accurate high-resolution X-ray diffraction analysis of three single crystals: 1,4-dinitrobenzene, a co-crystal of cis-tartaric acid and bis-pyridine N-oxide and pyridine-4-boronic acid hydrochloride and compare the electron density characteristics of the π-hole interactions present in the solids.

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Insight into the Electron Density Distribution in an O,N-Heterocyclic Stannylene by High-Resolution X-ray Diffraction Analysis

European Journal of Inorganic Chemistry ◽

10.1002/ejic.201801383 ◽

2019 ◽

Vol 2019 (6) ◽

pp. 875-884 ◽

Cited By ~ 6

Author(s):

Maxim G. Chegerev ◽

Alexandr V. Piskunov ◽

Kseniya V. Tsys ◽

Andrey G. Starikov ◽

Klaus Jurkschat ◽

...

Keyword(s):

High Resolution ◽

Density Distribution ◽

Diffraction Analysis ◽

Electron Density ◽

Electron Density Distribution ◽

X Ray Diffraction ◽

X Ray ◽

Insight Into

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Crystallization kinetics and high-resolution X-ray diffraction analysis on nonlinear optical l-threonine single crystals

Materials Letters ◽

10.1016/j.matlet.2007.03.109 ◽

2007 ◽

Vol 61 (27) ◽

pp. 4932-4936 ◽

Cited By ~ 6

Author(s):

G. Ramesh Kumar ◽

S. Gokul Raj ◽

Thenneti Raghavalu ◽

V. Mathivanan ◽

M. Kovendhan ◽

...

Keyword(s):

High Resolution ◽

Diffraction Analysis ◽

Single Crystals ◽

Crystallization Kinetics ◽

Nonlinear Optical ◽

X Ray Diffraction ◽

X Ray

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Syntheses, Crystal Structures and Thermal Stability of Co(II) and Zn(II) Complexes with Ethyl Carbazate

Zeitschrift für Naturforschung B ◽

10.1515/znb-2005-0505 ◽

2005 ◽

Vol 60 (5) ◽

pp. 505-510 ◽

Cited By ~ 12

Author(s):

Tong-Lai Zhang ◽

Jiang-Chuang Song ◽

Jian-Guo Zhang ◽

Gui-Xia Ma ◽

Kai-Bei Yu

Keyword(s):

Thermal Stability ◽

Aqueous Solutions ◽

Diffraction Analysis ◽

Single Crystals ◽

Slow Evaporation ◽

X Ray Diffraction ◽

Element Analysis ◽

Thermal Stabilities ◽

X Ray ◽

Thermal Stability Of

Cobalt(II) and zinc(II) complexes of ethyl carbazate (ECZ), [Co(ECZ)3](NO3)2 and [Zn(ECZ)3] (NO3)2, were synthesized. Single crystals of these two compounds were grown from aqueous solutions using a slow evaporation method. Their structures have been determined by X-ray diffraction analysis. Both of them are monoclinic with space group P21/n. The complexes are further characterized by element analysis and IR measurements. Their thermal stabilities are studied by using TG-DTG, DSC techniques. When heated to 350 °C, only metal oxide was left for both complexes.

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Thermal History of Matrix Forsterite Grains from Murchison Based on High-resolution Tomography

The Astrophysical Journal ◽

10.3847/1538-4357/ac26bc ◽

2021 ◽

Vol 922 (2) ◽

pp. 256

Author(s):

Giulia Perotti ◽

Henning O. Sørensen ◽

Henning Haack ◽

Anja C. Andersen ◽

Dario Ferreira Sanchez ◽

...

Keyword(s):

High Resolution ◽

Electron Density ◽

Chemical Compositions ◽

X Ray Diffraction ◽

X Ray ◽

Density Maps ◽

Thermally Processed ◽

The Matrix ◽

History Of ◽

Chondrule Formation

Abstract Protoplanetary disks are dust- and gas-rich structures surrounding protostars. Depending on the distance from the protostar, this dust is thermally processed to different degrees and accreted to form bodies of varying chemical compositions. The primordial accretion processes occurring in the early protoplanetary disk such as chondrule formation and metal segregation are not well understood. One way to constrain them is to study the morphology and composition of forsteritic grains from the matrix of carbonaceous chondrites. Here, we present high-resolution ptychographic X-ray nanotomography and multimodal chemical microtomography (X-ray diffraction and X-ray fluorescence) to reveal the early history of forsteritic grains extracted from the matrix of the Murchison CM2.5 chondrite. The 3D electron density maps revealed, at unprecedented resolution (64 nm), spherical inclusions containing Fe–Ni, very little silica-rich glass and void caps (i.e., volumes where the electron density is consistent with conditions close to vacuum) trapped in forsterite. The presence of the voids along with the overall composition, petrological textures, and shrinkage calculations is consistent with the grains experiencing one or more heating events with peak temperatures close to the melting point of forsterite (∼2100 K), and subsequently cooled and contracted, in agreement with chondrule-forming conditions.

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