02210nas a2200181   4500008004100000245020300041210006900244260000800313300001200321490000600333520144100339100002701780700002401807700002101831700002101852700002301873856013201896       2014                        eng d00aSyntheses, X-ray structures, catalytic activity and magnetic properties of two new coordination polymers of Co(II) and Ni(II) based on benzenedicarboxylate and linear N,N `-donor Schiff base linkers0 aSyntheses Xray structures catalytic activity and magnetic proper  cAPR  a414-4250 v13 a<p>{Two isostructural coordination polymers based on Co(II) and Ni(II), {[M(azpy)(3)(p-bdc)(2)(H2O)(4)]center dot(CH3OH)(2)(H2O)(3)}(n) [where M = Co (1) and Ni (2); azpy = N,N'-bis-pyridin-4-ylmethylene-hydrazine and p-bdc = 1,4-benzenedicarboxylate], have been synthesized using mixed ligand systems at room temperature and characterized by single-crystal X-ray diffraction and other physicochemical methods. Structure determination reveals that both the complexes crystallize in the monoclinic space group C2/c and exhibit one-dimensional (1D) ladder like structures constructed by p-bdc and azpy ligands in which Schiff base (azpy) linkers serve as a bridging as well as pendent ligands. These pendent ligands are involved in H-bonding and pi-pi interactions with lattice water, methanol molecules and bridging azpy ligands, to form the 3D supramolecular structure. Notably, both the frameworks efficiently catalyze the Knoevenagel condensation reactions of a wide range of substituted benzaldehydes with active methylene compounds in heterogeneous medium under environmentally friendly conditions and the products were obtained in excellent yields. These catalysts were also found to exhibit excellent recyclability and re-usability without any significant loss of activity. A variable temperature magnetic study of both compounds was carried out and their magnetic properties justified on the basis of their crystal structure.</p>1 aBhattacharya, Biswajit1 aMaity, Dilip, Kumar1 aPachfule, Pradip1 aColacio, Enrique1 aGhoshal, Debajyoti  uhttps://library.ncl.res.in/content/syntheses-x-ray-structures-catalytic-activity-and-magnetic-properties-two-new-coordination-001578nas a2200193   4500008004100000022001400041245010600055210006900161260000800230300001200238490000700250520086800257100003001125700002601155700002701181700002501208700002101233856013001254       2024                        eng d  a1528-748300aSimultaneously mechanically flexible, photobending, and acidochromic cyanostilbene molecular crystals0 aSimultaneously mechanically flexible photobending and acidochrom  cDEC  a309-3180 v253 a<p>
	Molecular crystals that respond to multiple stimuli are gaining significant attention for their potential in smart materials like actuators and sensors. However, imparting multiple stimuli-responsive properties to a single crystal remains a major challenge. Herein, we report two cyanostilbene derivative-based crystals 1 and 2, with various responses to stimuli such as mechanical stress, light, acid vapors, etc. Both crystals 1 and 2 demonstrated mechanical flexibility and reversible acidochromism. Additionally, crystal 1 also exhibited light-induced photobending, which is ascribed to Z to E photoisomerization. Detailed structure-property correlation was established to unravel distinct mechanical responses. The development of these multitasking crystals may find applications in multitasking actuators, anticounterfeiting materials, and more.</p>
1 aParthasarathy, Thiyagaraj1 aMishra, Manish, Kumar1 aBhattacharya, Biswajit1 aEmmerling, Franziska1 aGhosh, Soumyajit  uhttps://library.ncl.res.in/content/simultaneously-mechanically-flexible-photobending-and-acidochromic-cyanostilbene-molecular