“…The silver molybdates can be obtained by different methods of synthesis [12][13][14][15][16][17][18][19][20][21][22][23][24][25] in various morphologies [26,15,27,28,7,29,20,30], which make this compound the subject of several investigations, including the study of structural transitions by means of differential thermal analysis (DTA) [2], X-ray diffraction (XRD) [27,6], Raman spectroscopy [1,27,6,31], surfaceenhanced Raman spectroscopy [27,28] and absorption and emission spectroscopy [6,28,32,7]. However, the room temperature structure of the Ag2MoO4 crystal exists in two different forms namely as α-Ag2MoO4 (tetragonal) and β-Ag2MoO4 (cubic) [33].…”