Why did Claude-Louis Berthollet establish a laboratory at Arcueil?

Claude-Louis Berthollet established a private laboratory at his country home in Arcueil following his return to Paris from the Egyptian campaign.1

He used this facility to foster scientific collaboration, inviting young scientists to meet periodically with him and his neighbor, the mathematician Pierre-Simon Laplace. This informal group, known as the Société d’Arcueil, became the most significant creative center for physical and chemical research in France for a decade during the Napoleonic period.1