David Chukwuma Izuogu

3 Questions 9 Answers 0 Followers

Questions related from David Chukwuma Izuogu

How can I retify the alert of ** ARRAYS TOO SMALL - INCREASE -b * displayed in my attempt to refine all non-H atoms anisotropically using XShell?

Dear All, I need the help of a specialist in crystallography. I am solving a structure of a lanthanide based complex which is relatively large using XShell version 6.3.1 . In attempt to "Refine...

10 October 2017 8,281 0 View

How can I obtain crystals for single-XRD measurement of my compound using DMF as my solvent?

The compound is a Lanthanide heterometalic complex of benzene derivative. It seems to be soluble only in DMF. I have tried slow evaporation, diffusion method with ethanol, methanol, THF,...

07 July 2015 4,940 10 View

How does electronegativity of coordinated ligands affect the XPS spectra of a complex?

We can use XPS to investigate/determine chemical identity of metal ions in complexes. For example, we expect the binding energy of Fe3+ to be higher than a neutral Fe atom and Fe2+ because of the...

01 January 1970 3,685 7 View