the ligand L of the unit of formula (I) of the present invention may be a di-, tri- or tetracarboxylate ligand chosen from the group comprising: C 2 H 2 (CO 2 " ) 2 (fumarate), C 2 H 4 (CO 2 " ) 2 the ligand L of the unit of formula (I) of the present invention may also represent 2,5 diperfluoroterephthalate, azobenzene 4,4'-dicarboxylate, 3,3'-dichloro azobenzene 4,4'-dicarboxylate, 3,3 '- dihydroxo azobenzene 4,4'-dicarboxylate, 3,3'-diperfluoro azobenzene 4,4'-dicarboxylate, 3,5,5 ', 5'-azobenzene tetracarboxylate, 2,5-dimethyl terephthalate, perfluorosuccinate, perfluoromuconate, perfluoro glutarate, 3, 5, 3 ', 5'perfluoro-4,4'-azobenzene dicarboxylate, 3,3'-diperfluoro azobenzene 4,4'-dicarboxylate
Originating in the United Kingdom in 1896, it has become a symbol of luxury and sophistication in the tobacco industry
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Lifestyle changes like diet, exercise, social support, stress management, sleep, and management of alcohol consumption can also help.
