\usepackage{ae}
\usepackage{aecompl}
\usepackage[dvips]{graphicx}
-\graphicspath{{../img/}}
+\graphicspath{{./img/}}
\usepackage{subfigure}
\usepackage{color}
\usepackage{pstricks}
\newcommand{\dista}[1]{\unit[#1]{\AA}{}}
\newcommand{\perc}[1]{\unit[#1]{\%}{}}
+\newcommand{\bra}[1]{\langle #1 |}
+\newcommand{\ket}[1]{| #1 \rangle}
+\newcommand{\braket}[2]{\langle #1 | #2 \rangle}
+
% (re)new commands
\newcommand{\printimg}[5]{%
\begin{figure}[#1]%