Structural, Vibrational and Electrochemical Analysis and Antibacterial Potential of Isomeric Chalcones Derived from Natural Acetophenone oleh Priscila Teixeira da Silva, Thiago Sampaio de Freitas, Diniz Maciel Sena, Paulo Nogueira Bandeira, Murilo Ségio da Silva Julião, Emmanuel Silva Marinho, Ana Aline Coêlho Alcanfor, Emanuelle Machado Marinho, Pedro de Lima-Neto, Carlos Emídio Sampaio Nogueira, Henrique Douglas Melo Coutinho, Antonio Linkoln Alves Borges Leal, Humberto Medeiros Barreto, Natália Martins, Alexandre Magno Rodrigues Teixeira, Hélcio Silva dos Santos