Question

What is Newmann's projection formula?

Answer 1

Answer :

Newmann's Projection Formula -

Newmann's projection formula represent the spatial arrangement of atom or group of two adjacent carbon.

Here the Carbon atom are viewed along the axis of Carbon-Carbon bond. The Carbon atom towards front represent towards observer and rear Carbon atom represent away from observer.

The front carbon is represented by • and the rear by a ○.

Staggered Conformation -
A confirmation with 60° dihedral angle are known as staggered conformation.

Eclipsed Conformation -
A confirmation with 0° dihedral angle are known as eclipsed conformation.

Answer 2

Heya mate
The answer of ur question is here

Newmann's Projection Formula represent the spatial arrangements of atom or groups of the two adjacent carbon .
♢ In this ,The front carbon is represented as a dot and the back carbon as a circle.
♢ It is a compact version of " Seahorse projection " .

hope it helps