... to the point group of the molecule.Example. The two possible stretching vibrations of the water molecule are illus-trated in Figs. 4.16a and b. The motion of the O᎐H bonds is indicated by the ... nothing. The four possible combinations of C2z and σxzare shown in the second and third columns, and in each case the char-acter of σyz, shown in the fourth column, is the product of C2zϫ ... Half-way between the nodes there will be pointswhere the amplitude of the wave will be maximum. The variations of amplitude are thusa function of the distance along x. After the plucking, the resultant...