Hantao Xu

7 Questions 5 Answers 0 Followers

Questions related from Hantao Xu

Why are there 2 chemical shifts in the 19F NMR of LiPF6 with the same F atomic chemical environment?

Preparation of Pure LiPF6 Using Fluorine Gas at Room Temperature

01 March 2024 1,639 1 View

When hydrogen bonding is formed, does the electron density of the acceptor atom increase or decrease?

When hydrogen bonding is formed, the electron density on the donor atom (H) of the hydrogen bond decreases, but there is no information on how the electron density of the acceptor atoms (O, F)...

23 February 2024 2,135 1 View

What is the Chemical shift of hydrogen bonds in 19F NMR?

The nuclear magnetic F spectrum (19F NMR) shifts towards lower or higher fields when hydrogen bonds are formed between H atoms and F atoms?

22 February 2024 2,380 2 View

How to view thermodynamic data in Gaussian view 5?

Friends, I am using Gaussian 09 to calculate Bond dissociation energy (BDE). How to view the entropy of this molecule after optimizing its molecular structure

30 September 2023 7,715 2 View

What is the standard electrode potential of graphite?

Electrode potentials are measured against Li0 or SHE.

20 March 2023 7,062 1 View

Why is the open circuit voltage of the newly assembled LiFePO4/ Li-metal battery 3.4V?

Recently, the laboratory purchased a batch of new LiFePO4. Why is the open-circuit voltage of the newly assembled LFP/ lithium metal battery 3.4V? I used an old batch of LFP before, and the...

20 March 2023 6,792 0 View

Why is the open-circuit voltage of the LiFePO4/Li battery after assembly 3.4V?

I assembled the LiFePO4/Li battery in the glove box, and the open circuit voltage tested was 3.4V. Was this a normal phenomenon and why?

28 February 2023 4,026 2 View