The present work is an approach to the key factors in the design of participatory processes. It is intended to generate a conceptual model for participatory dynamics. This analysis is part of an ongoing investigation where several participatory processes and the quality of the generated public spaces are studied. The factors analyzed are the perception of people who take part in a participatory design process to understand how they influence the perception of space. The perception of the people who use a space is fundamental to its quality. Only positive perceptions can help improve the quality of public spaces by generating sustainable cities. Keywords: Citizen participation, public space, Co-design, sustainable cities, participatory processes, key factors, quality.

Metal-organic compounds, commonly known as MOFs (metal-organic frameworks), are porous solids formed by metal ions or clusters that coordinate with organic ligands to form uni-, di- or three-dimensional crystalline networks with permanent porosity by means of reticular synthesis (see figure 1). Thus, the same concept of metal-organic bond predisposes the possibility of synthesizing innumerable compounds, although in the case of ligands usually use rigid aromatic molecules. MOFs have been receiving the attention of the scientific and industrial community in recent years due to their characteristics and their various fields of application.