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Questions related from Yasmin Choaie
I am trying to submit this input file using two different basis sets (6-31g(d) and lanl2dz) but the file doesn't run. error: Wanted an integer as input. Found a string as input. C S O H 0...
21 January 2021 8,876 6 View
What are the effects of adding too much catalyst in a suzuki reaction? I seem to be getting a majority of the mono coupled product and recovering starting material enough though I add an excess of...
28 November 2019 5,927 8 View
After forming (3-methoxythiophen-2-yl)trimethylsilane, I react it with 1 eq of nBuLi and quench with snbu3cl - obtaining starting material. Is the nBuLi acting the tms group?
04 October 2019 6,131 4 View
What is the most plausible mechanism for the oxidation of 4-methylpyridine to isonicotinic acid using Na2CrO7 as the oxidising agent?
05 April 2017 4,205 3 View
My colleagues dissolved Selenophene in anhydrous ether and cooled to -78 oC. n-BuLi was then added dropwise while the mixture was being stirred continuously for 1.5 h at –78 oC. One portion of...
15 February 2017 3,936 3 View
Can anyone suggest a synthetic route for the following: 4-chloropyridine --> pyridin-4-ylphosphonic acid
22 November 2016 740 5 View
The BET surface area of fumed silica decreases when treated hydrothermally. However, the BET surface area of doped alumina on silica after hydrothermal treatment remains relatively close to its...
18 August 2016 3,617 6 View
According to the aufbau principle the 4s orbital is lower in energy than the 3d orbital hence, it is filled first. However, when we consider a transition metal complex this does not apply; the 3d...
14 May 2016 4,361 9 View
Can someone help with my DLS data?
01 January 1970 5,603 3 View
