Synthesis and characterization of decanuclear Ln(III) cluster of mixed calix[8]arene-phosphonate ligands (Ln = Pr, Nd)

https://doi.org/10.1016/j.inoche.2015.01.035Get rights and content

Highlights

  • Two novel Ln10 clusters are synthesized by phenylphosphonate and p-tert-butylcalix[8]-arene ligands.

  • The extended structures of these compounds are unusual, which contain two different kinds of layers: the cationic Ln10 cluster layer and co-crystallized H6TBC8A2  layer.

  • 2 shows the characteristic transitions of Nd3 + ion at the near-IR region.

Abstract

Two novel decanuclear Ln(III) compounds (Ln = Pr for 1, Nd for 2) have been solvothermally obtained by using p-tert-butylcalix[8]arene (H8TBC8A) and phenylphosphonate (PhPO3H2) as ligands. Single crystal X-ray diffraction studies reveal that both compounds are stacked by dumbbell-like Ln10 clusters, which are capped by two TBC8A8  supports and linked by four complementary PhPO32  ligands as well as other bridging anions. In addition, the self-assembly behavior of both compounds is interesting: the cationic Ln10 cluster layers are separated by the layers of H6TBC8A2  ligands. Moreover, the luminescent and magnetic properties of both compounds were examined.

Graphical abstract

Utilizing phosphonate as co-ligand, two novel decanuclear Ln10 clusters (Ln = Pr, Nd) based on p-tert-butylcalix[8]arene (H8TBC8A) with interesting self-assembly properties are reported: the cationic Ln10 cluster layers are separated by the anionic layers of co-crystallized H6TBC8A2  ligands.

  1. Download : Download full-size image

Section snippets

Acknowledgments

This work was financially supported by the 973 Program (2011CB932504), Special Project of National Major Scientific Equipment Development of China (2012YQ120060), National Natural Foundation of China (21390392) and Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah (1-130-1434-HiCi).

References (22)

  • F.R. Dai et al.

    Synthetic supercontainers exhibit distinct solution versus solid state guest-binding behavior

    J. Am. Chem. Soc.

    (2014)
    M. Liu et al.

    A tetrahedral coordination cage based on p-tert-butylthiacalix[4]arene and 5-sulfoisophthalic acid

    Inorg. Chem. Commun.

    (2014)
  • Cited by (16)

    • Lanthanide-calixarene complexes and their applications

      2022, Handbook on the Physics and Chemistry of Rare Earths
      Citation Excerpt :

      The position apical to the square features the fifth Tb(III) supported by four μ3-OH− ions to form a Tb5 pyramid (Fig. 3B). Organic compounds such as phenylphosphonate (PhPO3H2) can also be used as co-ligands to assemble polynuclear Ln cores [170]. The solvothermal processing of a C8A–PhPO3H2–Ln(III) mixture afforded decanuclear Ln(III) complexes [Ln10(3L)2(PhPO3)4(OH)2(HCO3)(HCOO)(DMF)14]·(H63L)·x(solv) (Ln = Pr, Nd).

    • pH-controlled construction of lanthanide clusters from lacunary polyoxometalate with single-molecule magnet behavior

      2020, Inorganic Chemistry Communications
      Citation Excerpt :

      In the past few decades, high-nuclearity lanthanide (Ln) clusters have attracted continuous attention, not only for their amazing structures but also because of their potential applications in magnetic, catalytic, optical and other fields [1–13]. However, the rational design and synthesis of giant homometallic Ln clusters, usually with organic-ligand-controlled hydrolysis approach [14–19], are still a great challenge. Although the ancillary organic ligands are very important, the thermostability of Ln clusters becomes worse because of the presence of organic ligands.

    • Magnetic properties of calixarene-supported metal coordination clusters

      2020, Coordination Chemistry Reviews
      Citation Excerpt :

      For completeness in this review, all Ln containing calixarene complexes with magnetic measurements have been included. A number of molecules have had electronic structure investigated through magnetic measurements, including complexes 53 (Nd10(tBuC8A)2), [107] 54 (Pr10(tBuC8A)2), [107] 55 (Eu2(tBuC4AS-H)2), [73] 56 (Eu2(bis[quin]-C4AH3)2), [108] 57 (Gd5(OtBuC4A)2), [109] 58 (Gd6(tBuC4A)2), [110] 59 (Gd6(tBuC4ASO2)4), [111] and 60 (Gd6(tBuC4A)2) [27]. These materials are outside the main scope the review and will not be discussed further.

    • A Tb-calixarene coordination chain for luminescent sensing of Fe<sup>3+</sup>, Cr<inf>2</inf>O<inf>7</inf><sup>2−</sup> and 2,4-DNT

      2019, Polyhedron
      Citation Excerpt :

      To construct desired luminescent lanthanide materials, the rigid ligands are widely studied [18]. Among them, calixarenes are reported to be a kind of effective multidentate ligands [19–21]. Here we present a stable 1D TbIII chain of p-tert-butylthiacalix[4]arene (CIAC-239) obtained by a solvothermal synthesis.

    • Recent advances in the assembly of high-nuclearity lanthanide clusters

      2019, Coordination Chemistry Reviews
      Citation Excerpt :

      Nearly two decades ago, the Zheng group explored a ligand-controlled hydrolysis approach in which the hydrolysis degree of the lanthanide was limited in the presence of organic ligands [10]. Currently, significant progress has been made with this approach since the first report of a pentadecanuclear lanthanide cluster complex that was assembled using tyrosine as the hydrolysis-limiting ligand [7], e.g., the carboxylate ligand family: Ln4 [17,18], Ln5 [19], Ln7 [20], Ln10 [21], Ln12 and Ln19 [22]; the diketonate ligand family: Ln3 [23], Ln4 [24,25], Ln5 [26–31], Ln6 [32], Ln8 [23], Ln9 [31,33], and Ln14 [34]; the phosphonate and sulfonate ligand family: Ln4 [35], Ln8 [36], Ln9 [37], and Ln10 [38]; and the polyoxometalate ligand family: Ln3 [39], Ln6 [40,41], Ln16 [42], and Ln26 [43]. The disadvantage of this approach is that these clusters are low-nuclearity clusters (<20) without anion templates, even though this is a common synthetic strategy.

    View all citing articles on Scopus
    View full text