19 research outputs found

    Preface

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    Synthesis of clathrate compounds ofCd(en)Pd(CN) 4·2Gtype

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    Ethane-1,1,2-trisphosphonic acid hemihydrate

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    International audienceEthane-1,1,2-tris­phosphonic acid crystallizes as a hemihydrate, C2H9O9P3·0.5H2O, in which the water O atom lies on an inversion centre in the space group P21/c. The acid com­ponent, which contains a short but noncentred O-H...O hydrogen bond, adopts a gauche conformation. The acid components are linked by an extensive series of O-H...O hydrogen bonds to form layers, which are linked into pairs by the water mol­ecule
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