Page Personnelle


 Nicolas Mercier, Pr


MOLTECH-Anjou lab   -  CIMI team


Tél  : (33) 2 41 73 50 83         
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UMR 6200 du CNRS
Bat. K, UFR Sciences, Université d'Angers
2, bd Lavoisier -49045 ANGERS Cedex - FRANCE


Chiara Botta- Milano (luminescence)
Alessandra Forni - Milano(calculations)
Jens Dittmer- Le Mans (solid state NMR)
Adi Kassiba Le Mans (EPR)
I. Bezverkhyy, J.P. Bellat- Dijon (gas adsorption)
F. Boucher- Nantes (calculations)
T. Pauporté - ENSCP (PSCs)
C. Pasquier- Orsay (electrical properties)

general chemistry,
inorganic chemistry,
material chemistry

 Research topics:


1- Bi complexes : high luminescence QY and MCL properties
bipyridine-N-oxide  and Bi3+ or Pb2+ based materials;            solid state Quantum Yields (QY) up to 85%;       phosphorescence ;       reversible Mechanochromic Luminescence (MCL) properties ;                 [first bismuth based MCL complexes]

2- Coordination Polymers and Porous CPs viologen based materials: photochromism, sensors and gas storage
a)  viologen-carboxylate ligands;  donor(guest)-acceptor(viologen) interactions ;  sensor applications ;     ammonia storage.   
b) methylviologen chlorobismuthate hybrids   ;     photochromic properties ;     key parameters (anionic oligomer size, Cl/V ratio,...)    
[results summarized in an invited article of
Microreview type in Eur. J. of Inorg. Chem 2013]

3- Hybrid Perovskites: ferroelectricity, NLO properties and Crystal engineering
a) hybrid ferroelectrics (MV)[M(III)X5] (MV2+ methylviologen, M= Bi, Sb; X= Cl, Br, I) ;        (MV)[BiI3Cl2] : polarization curve with ideal hysteresis and saturated polarization of 15  at 298K        [record in the field of hybrid ferroelectrics].
b) acentric iodometallate anions (ns2 lone pair stereoactivity) and conformationally chiral  disulfide molecule ;      switchable SHG properties    
c) hybrid perovskites ((R-NH3)2M(II)I4 (R= alkyl, M=Sn, Pb));       reducing the VB-CB gap (limiting the distorsions of inorganic layers) by selecting suitable organic cations ;            hydrogen and halogen bonding;       [results summarized in an invited article (Highlight )in CrysEngComm].

Bibliometry (WS, march 2017) : h 30  -  96 articles - 2650 cits

Publications (selection 2006-2016)                                                            Thanks to phD students: Nicolas Louvain, Nicolas Leblanc, Oksana Toma

Angew. Chemie Int. Ed., 2016, 55, 7998-8002.              Bismuth based Coordination Polymers with Highly Efficient Aggregation Induced Phosphorescence and Reversible Mechanochromic Luminescence.             O. Toma, M. Allain, F. Meinardi, A. Forni,* C. Botta,* N. Mercier,*

J. Mater. Chem. C., 2016, 4, 5940-5944. Process-Dependent Reversible Mechanochromic Luminescence of Bismuth based Polymorphs.
O. Toma, N. Mercier,*C. Botta*

Dalton Trans., 2015, 44, 14589-14593.  Aggregation Induced Phosphorescent N-Oxyde-2,2’-Bipyridine Bismuth Complexes and Polymorphism-Dependent Emission.      O. Toma, N. Mercier,* M. Allain, A. Forni, F. Meinardi, C. Botta

Inorg. Chem., 2015, 54, 8923-8930 (WS 03/2017: 15 citations). Photo-, Thermo-chromic and Adsorption Properties of Porous Coordination Polymers based on Bipyridinium Carboxylate Ligands. O. Toma, N. Mercier,* M. Allain, A. Kassiba, J. P. Bellat, G. Weber, I. Bezverkhyy

Eur. J. Inorg. Chem. 2013, 19–31 – microreview –(WS 03/2017 : 30 citations). The Templating Effect and Photochemistry of Viologens in Halometalate Hybrid Crystals.         N. Mercier*

Cryst. Growth Des. 2011, 11, 2064-2069 (WS 03/2017: 55 citations) Stable Photo-Induced Separated Charge State in Viologen halometallates: Some Key Parameters. N. Leblanc, M. Allain, N. Mercier*, L. Sanguinet

J. Am. Chem. Soc. 2011, 133, 14924  (WS 03/2017: 48 citations).    Large Spontaneous Polarization and Clear Hysteresis Loop of a Room Temperature Hybrid Ferroelectric Based on Mixed Halide [BiI3Cl2] Polar Chains and Methylviologen Dication.             N. Leblanc, N. Mercier,* L. Zorina, S. Simonov, P. Auban-Senzier, C. Pasquier*.

Chem Mater 2009, 21, 4099-4101 (WS 03/2017: 56 citations).        Thermally induced Bi(III) lone pair stereoactivity: Ferroelectric Phase Transition and Semiconducting Properties of (MV)BiBr5 (MV= methylviologen).      W. Bi, N. Leblanc, N. Mercier,* P. Auban-Senzier, C. Pasquier

CrystEngComm 2009, 11, 720-734– Highlight article (WS 03/2017: 101 citations).       Structural Diversity and Retro-Crystal Engineering Analysis of Iodometalate hybrids.         N. Mercier,*N. Louvain, W. Bi

Adv. Mater. 2008, 20, 1013   (WS 03/2017: 126 citations).            A switchable NLO organic-inorganic compound based on conformationally chiral disulfide molecules and Bi(III)I5 iodobismuthate networks.          W.Bi, N. Louvain, N. Mercier,* J. Luc, I. Rau, F. Kajzar, B. Sahraoui.

Chem. Mater. 2007, 19, 600 (WS 03/2017: 100 citations).      Reduced Band Gap Hybrid Perovskites Resulting from Combined Hydrogen and Halogen Bonding at the Organic-Inorganic Interface.            S. Sourisseau, N. Louvain, W. Bi, N. Mercier,* D. Rondeau, F. Boucher, JY Buzaré, C. Legein

Angew. Chemie, Int. Ed. 2006, 45, 2100-2103  (WS 03/2017: 62 citations).          Conglomerate to True Racemate Reversible Solid State Transition in Crystals of an Organic Disulfide Based Iodoplombate.              N. Mercier,*A.-L. Barres, M. Giffard, I. Rau, F. Kajzar, B. Sahraoui