Text this: A series of new microporous lanthanide frameworks [Ln(C<inf>8</inf>H<inf>3</inf>NO<inf>6</inf>)(L)<inf>0.5</inf>(H<inf>2</inf>O)]·3H<inf>2</inf>O (Ln = Pr, Nd, Sm and Gd, and L = C<inf>8</inf>H<inf>4</inf>O<inf>4</inf>or C<inf>8</inf>H<inf>4</inf>O<inf>4</inf>/C<inf>8</inf>H<inf>3</inf>NO<inf>6</inf>): Syntheses, characterization and photoluminescence properties

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