Skip to Content
You are currently on the new version of our website. Access the old version .

Chemistry, Volume 2, Issue 4

2020 December - 10 articles

Cover Story: X-ray crystallographic and spectroscopic studies on bis(diphenylphosphino)methane dioxide (dpmo2) coordination toward the lanthanide trichlorides reveal clear trends across the series with eight-coordinate (square antiprismatic) cations [M(dppmO2)4]3+ (M = La, Ce, Pr, Nd, Sm, Eu, Gd), whereas seven-coordinate (distorted pentagonal bipyramidal) [M(dppmO2)3Cl]2+ occur for M = Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, while LuCl3, alone, forms the six-coordinate (distorted octahedral) species [Lu(dppmO2)2Cl2]+. The decreasing coordination numbers and geometry along the series is driven by a combination of the reduction in the radii of the lanthanide cations, leading to an increase in the charge/radius ratio, as well as the competition caused by the presence of the chloride ions. View this paper.
  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
  • You may sign up for email alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.

Articles (10)

  • Article
  • Open Access
5 Citations
5,622 Views
9 Pages

10 December 2020

Catalytic nitrobenzene reduction is crucial for the synthesis of 4,4-methylene diphenyl diisocyanate, which is used to produce polyurethane foams, thermoplastic elastomers, and adhesives. The stability and activity of nanoparticle catalysts are affec...

  • Article
  • Open Access
8 Citations
4,230 Views
13 Pages

19 November 2020

Bis(diphenylphosphino)methane dioxide (dppmO2) forms eight-coordinate cations [M(dppmO2)4]Cl3 (M = La, Ce, Pr, Nd, Sm, Eu, Gd) on reaction in a 4:1 molar ratio with the appropriate LnCl3 in ethanol. Similar reaction in a 3:1 ratio produced seven-coor...

  • Article
  • Open Access
1 Citations
4,324 Views
10 Pages

Defects and Calcium Diffusion in Wollastonite

  • Sumudu Nimasha,
  • Sashikesh Ganeshalingam,
  • Navaratnarajah Kuganathan,
  • Konstantinos Davazoglou and
  • Alexander Chroneos

2 November 2020

Wollastonite (CaSiO3) is an important mineral that is widely used in ceramics and polymer industries. Defect energetics, diffusion of Ca ions and a solution of dopants are studied using atomistic-scale simulation based on the classical pair potential...

  • Article
  • Open Access
4 Citations
4,336 Views
19 Pages

30 October 2020

A model for the survival of the amino acid content in micrometeorites and its possible transformations upon atmospheric entry is described. Since any organic species released in the atmosphere at high altitudes would exhibit a limited lifetime with r...

  • Article
  • Open Access
2 Citations
3,807 Views
18 Pages

21 October 2020

The synthesis and corrosion inhibition performance of poly(butylene-succinate)-L-proline (PBSLP) prepared by solution polymerization are reported. PBSLP was characterized by FTIR, XRD, and SEM/energy dispersive X-ray (EDX). PBSLP was used to protect...

  • Review
  • Open Access
281 Citations
22,338 Views
51 Pages

New Antimicrobial Strategies Based on Metal Complexes

  • Mickaël Claudel,
  • Justine V. Schwarte and
  • Katharina M. Fromm

16 October 2020

Traditional organic antimicrobials mainly act on specific biochemical processes such as replication, transcription and translation. However, the emergence and wide spread of microbial resistance is a growing threat for human beings. Therefore, it is...

  • Perspective
  • Open Access
3 Citations
6,196 Views
12 Pages

6 October 2020

The large originator pharmaceutical companies need more and more new compounds for their molecule banks, because high throughput screening (HTS) is still a widely used method to find new hits in the course of the lead discovery. In the design and syn...

  • Communication
  • Open Access
9 Citations
5,258 Views
10 Pages

5 October 2020

This work establishes the ‘click’ nature of the base-catalyzed oxirane ring opening reaction by the selenolate nucleophile. The ‘click’-generated ß-hydroxy selenide can be alkylated to afford cationic selenium species. H...

  • Feature Paper
  • Review
  • Open Access
37 Citations
9,988 Views
22 Pages

The Crystal Chemistry of Inorganic Hydroborates

  • Radovan Černý,
  • Matteo Brighi and
  • Fabrizio Murgia

29 September 2020

The crystal structures of inorganic hydroborates (salts and coordination compounds with anions containing hydrogen bonded to boron) except for the simplest anion, borohydride BH4, are analyzed regarding their structural prototypes found in the...

  • Review
  • Open Access
21 Citations
10,326 Views
9 Pages

Howard Flack and the Flack Parameter

  • David John Watkin and
  • Richard Ian Cooper

23 September 2020

The Flack Parameter is now almost universally reported for all chiral materials characterized by X-ray crystallography. Its elegant simplicity was an inspired development by Howard Flack, and although the original algorithm for its computation has be...

Get Alerted

Add your email address to receive forthcoming issues of this journal.

XFacebookLinkedIn
Chemistry - ISSN 2624-8549