Supporting Information


    Variable behaviour of a flexible bispyrazole ligand: A Co(II)
       polymer and unique Cu(II) penta-coordinated dimer


Joan Soldevila-Sanmartína, Teresa Calvetb, Mercè Font-Bardiac, Duane Choquesillo-
Lazarted, José G. Planase, Josefina Ponsa,*




a
    Departament de Química, Universitat Autònoma de Barcelona, 08913 Bellaterra,
Barcelona, Spain.

b
    Departament de Mineralogia, Petrologia i Geologia Aplicada, Universitat de
Barcelona, Martí i Franquès s/n, 08028 Barcelona, Spain.

c
    Unitat de Difracció de Raigs-X, Centres Científics i Tecnològics de la Universitat de
Barcelona (CCiTUB), Universitat de Barcelona, Solé i Sabarís, 1-3, 08028 Barcelona,
Spain.

d
    Laboratorio de Estudios Cristalógraficos, IACT (CSIC-Universidad de Granada),
Avda. de las Palmeras 4, Armilla, 18100 Granada, Spain.

e
    Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193
Bellaterra, Spain.

*
    Corresponding Author

E-mail address: josefina.pons@uab.cat (J. Pons)




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Figure S1. X-ray diffractogram of {[Co(L)Cl2]·1/2H2O}n (1, bottom) measured at r.t. Calculated
pattern from resolved crystal structure is also included (top) as a reference, from monocrystal
XRD measured at 100(2) K.




Figure S2. X-ray diffractogram of [Cu2(L)Cl4] (2, bottom) measured at r.t. Calculated pattern
from resolved crystal structure is also shown (top) as a reference, from monocrystal XRD
measured at 293(2) K.




                                                                                            S2
Figure S3. FTIR-ATR spectrum of compound 1




Figure S4. FTIR-ATR spectrum of compound 2




                                             S3
Figure S5. UV-Vis spectra of 1 (CH2Cl2, 1.06·10-3 M) measured at r.t.




Figure S6. UV-Vis spectra of 2 (1.25·10-3 M) in MeOH measured at r.t.

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S5