bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthese und Metallierung des Diphosphanyldisilans iPr4Si2(PH2)2, des zyklischen Silylphosphans (iPr2Si)3PH sowie des zyklischen Siloxylphosphans tBu2Si(OSiiPr2)2PH
Authors: von Hänisch Carsten , Traut Stephan , Stahl Sven 
Published: October 2007

AbstractSynthesis and Metalation of the Diphosphanyldisilane iPr4Si2(PH2)2, of the cyclic Silylphosphane (iPr2Si)3PH as well as of the cyclic Siloxylphosphane tBu2Si(OSiiPr2)2PHThe 1,2‐diphosphanyldisilane iPr4Si2(PH2)2 (1) was obtained from the reaction of iPr4Si2Cl2 with [Li(dme)PH2]. Whereas reactions of [Li(dme)PH2] with the 1,3‐dichlortrisilane iPr6Si3Cl2 and the 1,5‐dichlortrisiloxane tBu2Si(OSiiPr2Cl)2 yield the cyclic compounds (iPr2Si)3PH (2) and tBu2Si(OSiiPr2)2PH (3). The reaction of 1 with AlEt3 produced the polycyclic compound [iPr4Si2{P(H)AlEt2}{PAlEt}]2 (4), by reactions of 2 and 3 with nBuLi the tricyclic compounds [(iPr2Si)3PLi(dme)]2 (5) and [tBu2Si(OSiiPr2)2PLi(Et2O)]2·C7H8 (7) were obtained. Reactions of these lithium compounds with Me3SiCl produced the tertiary, cyclic silylphosphanes (iPr2Si)3PSiMe3 (6) and tBu2Si(OSiiPr2)2PSiMe3 (8).
Enantiopure Salen‐Type Zinc Complexes
Authors: Meyer Nils , Roesky Peter W. 
Published: October 2007

AbstractThe first structurally characterized salen complexes of zinc having the chiral 1,2‐(R,R)‐diamino‐1,2‐diphenylethane as bridge between the two salicylaldehyde units were prepared. Treatment of (R,R)‐bis(salicylidene)‐1,2‐diphenylethylenediamine (1) with ZnEt2 resulted in the enantiomeric pure salen zinc complex ‐di[(R,R)‐(N,N′)‐bis(salicylidene)‐1,2‐diphenylethylenediamino)zinc(II)] (2). Compound 2 is a dimer in the solid state having a Zn‐O‐Zn‐O plane in the center of the molecule. In contrast, reaction of the more bulky (R,R)‐bis(3,5‐di‐tert‐butylsalicylidene)‐1,2‐diphenylethylenediamine (3) with ZnMe2 leads to the monomeric compound [(R,R)‐(N,N′‐bis(3,5‐di‐tert‐butylsalicylidene)‐1,2‐diphenylethylenediamino)(dietylether)zinc(II)] (4). In addition to the salen ligand one molecule of diethyl ether is bound resulting in a penta‐fold coordinated zinc atom.
On the Mechanisms of Electride Induced Synthesis of Ytterbium Carbazolates, Formation of Coordination Polymers by Condensation and Polymer Degradation by Chemical Scissors
Authors: Müller‐Buschbaum Klaus , Zurawski Alexander 
Published: October 2007

AbstractDissolution of ytterbium metal in liquid ammonia in the presence of carbazole at low temperatures and subsequent treatment with N‐phenylpiperazine gives single crystalline [Yb(Cbz)2(NH3)4] · 3Phpip (Cbz− = carbazolate anion, C12H8N−, Phpip = N‐phenylpiperazine, (C6H5)C4H8NNH). The highly air and moisture sensitive crystals are prone to release ammonia but can be successfully shielded in the interior of large crystals of CbzH · Phpip, a co‐crystallization of both ligands, whose crystal structure is also presented. Further heating transforms the monomeric molecules [Yb(Cbz)2(NH3)4] into dimeric [Yb2(Cbz)4(NH2)2(NH3)4] · 3CbzH and their condensation accompanied by release of ammonia consequently leads to the coordination polymer $^{1}_{\infty}\rm [Yb_{2}(Cbz)_{4}]$. This reaction path is compared to a high temperature reaction route without electride formation. Synthesis in molten carbazole directly leads to the one‐dimensional coordination polymer. Subsequent treatment with N‐phenylpiperazine yields dimeric [Yb2(Cbz)4(Phpip)4] · 2Phpip and monomeric [Yb(Cbz)2(Phpip)3][Yb(Cbz)3(Phpip)2], the final step of the degradation reaction. It can be shown that N‐phenylpiperazine functions as chemical scissors at higher temperatures and as crystallization matrix at lower temperatures.
Synthesis and Crystal Structure of the New Quaternary Subnitride Na15Li8Ba12N6
Authors: Smetana Volodymyr , Babizhetskyy Volodymyr , Vajenine Grigori V. , Simon Arndt 
Published: October 2007

AbstractThe crystal structure of the new compound Na15Li8Ba12N6 has been determined from single‐crystal X‐ray diffraction data. It crystallizes in the trigonal system, space group $R{\bar 3}m$ with a = 12.3409(9) Å, c = 33.311(4) Å, Z = 3, and R1 = 0.037 (wR2 = 0.046) for 1912 reflections with Io>2σ(Io). The structure can be described as an fcc‐type packing of Na tetrahedrons with Li8Ba12N6 clusters and centered Na hexagons in chair conformation among them. These hexagons together with some tetrahedral vertices connect to parallel infinite layers. By analogy with quaternary Na/Ba/Ca subnitrides this structure can be also regarded as a “salt in metal”.
Structural Flexibility of Carboxylate Bridging Exemplified by a Series of μ‐Acetato Dizinc Complexes
Authors: Gil Miguel Alvariño , Maringgele Walter , Dechert Sebastian , Meyer Franc 
Published: October 2007

AbstractA series of closely related dizinc acetato complexes [LZn2(OAc)](ClO4)2 has been prepared from an assortment of known (HL1 – HL3) and new (HL4 – HL6) binucleating compartmental pyrazolate‐based ligands that provide two tripodal tetradentate {N4}‐type binding pockets but differ by the type of N‐donor within the chelate side arms. Six complexes 1a, 1b, 2 – 5 have been characterized by X‐ray crystallography. In all cases the two zinc ions are five‐coordinate, are nested in the adjacent ligand compartments as anticipated, and are spanned by a μ1,3‐bridging acetate that is hosted within the bimetallic pocket. Significant flexibility of the μ1,3‐acetato ligand is inferred from the structural data, resulting in dislocations of the metal ions out of the pyrazolate plane as well as severe twisting and tilting of the acetate bridge with respect to the bimetallic scaffold. These different orientations of the bridging acetate cannot be distinguished by their IR spectra, in contrast to the different acetate binding modes known from the dynamic behaviour termed “carboxylate shift”. However, the high flexibility of the μ1,3‐acetate even without changes in its coordination mode may well be a prerequisite for reactivity patterns of acetate‐bridged bimetallic arrangements.
Characterization of Gold Clusters by Crystallization with Polyoxometalates: the Intercluster Compounds [Au9(dpph)4][Mo8O26], [Au9(dpph)4][PW12O40] and [Au11(PPh3)8Cl2]2[W6O19]
Authors: Schulz‐Dobrick Martin , Jansen Martin 
Published: October 2007

AbstractFour intercluster compounds constituted of different gold clusters and polyoxometalates have been crystallized and their crystal structures been determined. Two crystal structures comprise the new gold cluster [Au9(dpph)4]3+ (dpph = 1,6‐ bis(diphenylphosphino)hexane) and an octamolybdate anion, but differ in the overall packing of the building blocks, which are mutually coordinated distorted square planar (1: Pnna, Z = 4, a = 26.381(2), b = 32.428(2), c = 22.951(2) Å; 2: Pnna, Z = 8, a = 44.182(6), b = 43.138(6), c = 19.631(3) Å). The same gold cluster was found in [Au9(dpph)4][PW12O40], which crystallizes in ${\rm P}{\bar 1}$, Z = 2, a = 17.450(2), b = 18.833(3), c = 31.590(4) Å, α = 77.967(2)°, β > = 76.724(2)°, γ> = 64.598(2)°. The overall packing can be related to the NaCl‐type structure. The building blocks of [Au11(PPh3)8Cl2]2[W6O19] are packed as in the anti‐CdI2‐type structure. The compound crystallizes in ${\rm P}{\bar 1}$, Z = 1, a = 17.201(2), b = 18.154(2), c = 27.786(3) Å, α = 88.752(2)°, β = 88.426(2)°, γ = 68.331(2)°.
Cationic Main Group Element Cages of Germanium(II) and Tin(II) Consisting of 3,5‐Di(t‐butyl) Substituted Pyrazolyl Ligands in the Bridging Position
Authors: Krummenacher Ivo , Oschwald Claudia , Rüegger Heinz , Breher Frank 
Published: October 2007

AbstractThe transamination reaction of [Ge{N(SiMe3)2}2] with two equivalents of 3,5‐di(t‐butyl)pyrazole H(3,5‐tBu2pz) yielded the homoleptic germanium(II) pyrazolyl compound 4. Treatment of 4 and its analogous tin(II) compound 1 with triflic acid (HOTf) in diethyl ether afforded cationic, triply pz‐bridged cages of the general formula [E(μ2‐3,5‐tBu2pz)3E]+OTf− (E = Ge 5, Sn 6) in good yields. The sterically demanding t‐butyl substituted μ2‐pyrazolyl bridges adopt a skew arrangement with respect to the E···E vector in the solid state. DFT calculations were performed on the cage compounds 5 and 6 in order to elucidate the influence of the tilting of the pyrazolyl ligands as well as a weak coordination of the triflate counter anion in 6 on the intramolecular element element distances within the cationic moieties.
Synthesis and Structural Characterization of β‐Diketiminato Yttrium Complexes and their Application in Epoxide/CO2‐Copolymerization
Authors: Lazarov Boyan B. , Hampel Frank , Hultzsch Kai C. 
Published: October 2007

AbstractThe β‐diketiminato yttrium complexes [(BDIPh)2Y{N(SiHMe2)2}] (1, BDIPh = [PhNC(Me)CHC(Me)NPh]−), [(BDIPh)3Y] (2), and [(C5Me5)(BDIPh)Y{N(SiHMe2)2}] (4) are available via amine elimination starting from (BDIPh)H and either [Y{N(SiHMe2)2}3(THF)2] or [(C5Me5)Y{N(SiHMe2)2}2(THF)] (3). X‐ray crystallographic analysis of complexes 1 and 4 revealed a η5 coordination mode for the β‐diketiminato ligand, whereas the distorted octahedral complex 2 displayed pure κ2 coordination. Complex 3 was also structurally characterized. 1, 3, and 4 are moderately active catalysts in the copolymerization of cyclohexene oxide and CO2. Complex 3 was the most active system (TOF up to 33 h−1 at 75 °C, 8.5 atm CO2) and gave the highest molecular weight and narrowest polydispersity (Mn = 12600 g mol−1, Mw/Mn = 1.6).
Magnetization Studies of Superconductivity in a Molecular Metal Cluster Compound
Authors: Bono D. , Bakharev O.N. , Schnepf A. , Hartig J. , Schnöckel H. , de Jongh L. J. 
Published: October 2007

AbstractMagnetization studies of the superconducting phases of two representative examples of the metal cluster compounds [Ga84{N(SiMe3)2}20‐Li6Br2(thf)20]·2toluene are presented. These materials can be seen as self‐organized nanostructures, composed of identical nanosized Ga84 metal particles arranged in a crystalline ordered 3‐dimensional array with a weak interparticle charge transfer. The compounds undergo transitions to bulk superconductivity of type II below Tc ≈ 7 – 8 K. The lower and upper critical fields Bc1 and Bc2 vary greatly between samples, which can be attributed to different concentrations of lattice defects arising from toluene deficiency.
Towards Rhodium and Iridium Complexes Containing the Secondary Phosphane Ligand tBu2PH
Authors: Böttcher Hans‐Christian , Graf Marion , Karaghiosoff Konstantin , Mayer Peter 
Published: October 2007

AbstractThe reactions of [{M(μ‐Cl)(η4‐cod)}2] (M = Rh, 1a; M = Ir, 1b; cod = 1,5‐cyclooctadiene) and [Rh(acac)(olefin)2] (acac = acetylacetonate; olefin = ethene, 3a; olefin = cis‐cyclooctene = coe, 3b) with tBu2PH in dichloromethane at room temperature were investigated, and the compounds [MCl(tBu2PH)(η4‐cod)] (M = Rh, 2a; M = Ir, 2b) as well as [Rh(acac)(tBu2PH)2] (4) were obtained in good yields. Furthermore, a one‐pot synthesis of trans‐[IrCl(C2H4)(tBu2PH)2] (6b) starting from [{Ir(μ‐Cl)(coe)2}2] (5), ethene and tBu2PH is described. All novel complexes were characterized using spectroscopic methods and the molecular structures of 2b, 6b, and trans‐[RhCl(C2H4)(tBu2PH)2] (6a) determined using X‐ray crystallography.
Synthese und Kristallstruktur der Verbindung [(C4H9)3(CH3)N]2[(WOCl4)2C4H8O2]
Authors: Okrut Alexander , Feldmann Claus 
Published: October 2007

AbstractSynthesis and Crystal Structure of the Compound [(C4H9)3(CH3)N]2[(WOCl4)2C4H8O2]By reacting WCl6, elemental potassium and 18‐crown‐6 in the ionic liquid [(C4H9)3(CH3)N][N(SO2CF3)2], [(C4H9)3(CH3)N]2 [(WOCl4)2C4H8O2] containing pentavalent tungsten is formed. The novel compound is yielded with transparent bluish crystals. Concerning to X‐ray diffraction analysis based on single crystals, [(C4H9)3(CH3)N]2 [(WOCl4)2C4H8O2] crystallizes triclinic ($P{\bar 1}$; a = 998.0(2); b = 1145.0(3); c = 1153.0(3) pm; α = 82.51(3)°; β = 65.31(3)°; γ = 70.80(3)°; Z = 1). The anion consists of two distorted WO2Cl4‐octahedra, which are bridged by a shared 1,4‐dioxane molecule.
Syntheses and Crystal Structures of Linear and Zig‐zag 1D Coordination Polymers with Schiff‐base N,N′‐Type Ligands
Authors: Wang Qing , Liang Bing , Zhang Jian‐Yong , Pan Mei , Kang Bei‐Sheng , Su Cheng‐Yong 
Published: October 2007

AbstractAssembly of the Schiff‐base ligands 1,4‐bis(3‐pyridyl)2,3‐diaza‐1,3‐butadiene (N3Py) and 1,4‐bis(4‐pyridyl)‐2,3‐diaza‐1,3‐butadiene (N4Py) with different transition metal salts afforded four zig‐zag and two linear one‐dimensional (1D) chain coordination polymers, namely {[Hg(N3Py)Cl2]·CHCl3}n (1), [Hg(N3Py)I2]n (2), [Hg(N4Py)I2]n (3), {[Zn(N3Py)(NO3)2H2O]·H2O}n (4), {[Ag2(N3Py)2]·(CF3SO3)2}n (5) and {[Zn(N4Py)]·(C7H7SO3)2· (C2H5OH)2]n (6). These polymeric structures have been characterized by the single‐crystal X‐ray diffraction, FT‐IR and X‐ray powder diffraction measurements. The crystal packing fashions of these 1D chains have been analyzed, which indicates that the difference of the ligands and counter anions could significantly affect the stacking modes of these 1D chains in the crystal lattice, thus resulting in different hosting behaviors of the solvated molecules and anions. The thermal stability of complexes 1 and 6 was investigated by thermogravimetric measurements. The solid‐state phase purity has been checked by X‐ray powder diffraction measurements.
Syntheses, Crystal Structures, UV‐Vis Spectra and First NMR Spectra of New Potassium Salts of Chalcogenogermanates
Authors: Melullis Maike , Dehnen Stefanie 
Published: October 2007

AbstractSingle‐crystalline K+ salts of chalcogenogermanate anions and their corresponding hydrates have been prepared. K4[GeS4] (1), K4[GeSe4] (2), [K4(H2O)][GeS3(OH)] (3), [K4(H2O)4][GeSe4] (4), [K4(H2O)2][GeTe4] (5) and [K4(H2O)3][Ge2Se6] (6) were characterized by means of X‐ray diffractometry and optical absorption spectroscopy. Additionally, first NMR‐spectra of chalcogenogermanate salts are presented for 4 – 6.
Diamino Monosaccharide Ligands in Group 6 Carbonyl Complexes
Authors: Fowelin Christian , Matyja Anna , Schmidt Michael , Heck Jürgen 
Published: October 2007

AbstractThe reaction of methyl‐2,3‐diamino‐4,6‐O‐benzylidene‐2,3‐dideoxy‐α‐D‐glucopyranoside with the hexacarbonyl complexes of chromium, molybdenum and tungsten results in three new chiral tetracarbonyl complexes containing a diamino monosaccharide ligand. They are characterized by means of 1H, 13C NMR and infrared spectroscopy as well as single crystal X‐ray diffraction analysis.
Reactions of Coinage Metal Salts with a Mixed Sulfonic/Carboxylic Acid Anhydride
Authors: Shi Weifeng , Zhang Le , Shafaei‐Fallah Maryam , Rothenberger Alexander 
Published: October 2007

AbstractThe synthesis and structures of four new compounds are reported. [Cu2(2‐sba)(dppm)2] (1), [Ag4(2‐sba)2(PPh3)4] (2), [Ag2(2‐sbaH)2(PPh3)4] (3), [Ag(2‐sbaH)(PPh3)3] (4) (2‐sbaH2 = 2‐sulfobenzoic acid) were prepared by treatment of 2‐sulfobenzoic acid anhydride with metal salts under anhydrous conditions (1, 2) and in the presence of water (3, 4).
Kohlenwasserstoffverbrückte Metallkomplexe. LI. Ein Bis(ferrocenyl‐1,3‐diketonat)‐Kupfer(II)‐Chelatkomplex als Wirt für Calcium‐ und Alkalimetallionen
Authors: Woisetschläger Oliver E. , Scheurer Andreas , Saalfrank Rolf W. , Beck Wolfgang 
Published: October 2007

AbstractHydrocarbon Bridged Metal Complexes. LI. A Bis(ferrocenyl‐1,3‐diketonate) Chelate Copper(II) Complex as Host for Calcium and Alkali‐IonsThe reactions of the ferrocene (Fc) containing bis(ferrocenyl‐1,3‐diketone) FcC(O)CH=C(OH)‐C(OH)=CHC(O)Fc with copper2+ ions in the presence of calcium, sodium or potassium salts yield complexes in which bis(1,3‐diketonate)copper chelates act as hosts for Ca2+, Na+ or K+ ions.
Investigations on Chemical Vapour Deposition of Magnesium‐Boron‐Containing Metal‐Organic Precursors
Authors: Mathur Sanjay , Rügamer Thomas , Braunschweig Holger , D'Andola Giovanni 
Published: October 2007

AbstractSingle‐molecular magnesium‐boron precursors [Mg(C3H6‐BC8H14)2] and [Mg{C3H6‐B(C6H11)2}2] were applied in chemical vapour deposition processes and characterized using SEM, XRD, XPS, AFM and MS methods towards their fragmentation behaviour, film morphology, phase formation and film composition. Depositon procedures in a temperature range from 500 to 1000 °C produced smooth and thin films with Mg and B in the ration 1:2. It could be shown that the contamination of the deposits by a considerably fraction of residual carbon could be reduced by post‐deposition in‐situ tempering or additionally sputter processes which may lead to improved deposition of MgB2‐films.
Reaktion von (R,R)‐(N,N′)‐Diisopropylcyclohexyl‐1,2‐diamin mit Berylliumchlorid. Kristallstrukturen von (R,R,SN,SN′)‐[(C12H26N2)BeCl2] und (R,R,SN,SN′)‐[(C12H26N2)BeCl(N3)]
Authors: Neumüller Bernhard , Dehnicke Kurt 
Published: October 2007

AbstractReaction of (R,R)‐(N,N′)‐Diisopropylcyclohexyl‐1,2‐diamine with Beryllium Chloride. Crystal Structures of (R,R,SN,SN′)‐[(C12H26N2)BeCl2] and (R,R,SN,SN′)‐[(C12H26N2)BeCl(N3)](R,R)‐(N,N′)‐diisopropylcyclohexyl‐1,2‐diamine reacts with equimolar amounts of BeCl2 in dichloromethane suspension to give the donor acceptor complex (R,R,SN,SN′)‐[(C12H26N2)BeCl2] (1). The reaction of 1 with excess trimethylsilylazide in dichloromethane solution leads to the formation of the azido derivative (R,R,SN,SN′)‐[(C12H26N2)BeCl(N3)] (2). Both complexes are characterized by X‐ray diffraction and by IR spectroscopy.1 · 0.5CH2Cl2: Space group P6122, Z = 6, lattice dimensions at 193 K: a = b = 1390.3(1), c = 1624.8(1) pm, R1 = 0.0509. In the chiral complex 1 the BeCl2 unit forms a BeN2C2 chelate ring with Be–N distances of 199.8(4) pm. The molecules are associated via Cl···H–N hydrogen bridges along [001].2: Space group P21, Z = 6, lattice dimensions at 193 K: a = 1501.7(2), b = 968.6(2), c = 1629.2(4) pm, β = 90.03(3)°, R1 = 0.0981. The structure of 2 consists of three independent chiral units (R,R,SN,SN′)‐[(C12H26N2)BeCl(N3)], which are associated via Cl···H–N and Nα···H–N hydrogen bridges along [100], Nα being Nα atoms of the azido groups.
On the 100th Anniversary of Sterile Catgut Kuhn: Franz Kuhn (1866–1929) and the Epistemology of Catgut Sterilization
Authors: Dietz Ulrich A. , Kehl Franz , Hamelmann Wulf , Weißer Christoph 
Published: October 2007

AbstractThe long road to effective catgut sterilization began with the work of Lord Joseph Lister (1867) and did not end until 40 years later. At the end of the nineteenth century dozens of different techniques were used to “sterilize” catgut, by immersing the cord in a cold chemical solution, by exposing it to steam, or by a combination of the two techniques, yet none of these approaches offered the ultimate solution. One of the many physicians working on the catgut problem at that time was the German surgeon Franz Kuhn (1866–1929), best known as a pioneer of intubation anesthesia. This review offers a brief biographical sketch of Kuhn’s life and career on the occasion of the centenary of Sterile Catgut Kuhn. The goal of the present study is to describe several landmarks in the development of the catgut sterilization method. To explain this process, two approaches are taken: first, an analysis to see whether the character traits of the typical surgeon at that time provided the soil in which innovation could thrive, and second, an epistemological examination of the conceptual models for the attainment of knowledge current at that time. Perspectives for the future are explored in light of the “imperative of responsibility” of Hans Jonas.
Liver Resection and Transplantation in the Management of Iatrogenic Biliary Injury
Authors: Thomson B. N. J. , Parks R. W. , Madhavan K. K. , Garden O. J. 
Published: October 2007

AbstractBackgroundBiliary injury during cholecystectomy can be managed successfully by biliary reconstruction in the majority of patients; however, a proportion of patients may require hepatic resection or even liver transplantation.MethodsData on all patients referred with biliary injuries were recorded prospectively. The details of patients who required hepatic resection or transplantation were analyzed and compared to those patients managed with biliary reconstruction alone.ResultsFrom November 1984 until November 2003 there were 119 patients referred with Strasberg grade E injuries to the biliary tree, 14 of whom (9 women, 5 men) required hepatic resection or transplantation. The median age of these 14 patients was 48 (range: 30–81) years. Nine patients were considered for hepatic resection, and of these six underwent right hepatectomy, two had a left lateral sectionectomy, and one patient was deemed unfit for surgery and underwent metal stenting of the right hepatic duct. All patients are alive and remain well. Five patients developed hepatic failure and were considered for liver transplantation. Two patients who were unfit for transplantation died, and another died while on the waiting list for transplantation. The remaining two patients underwent liver transplantation, and one of them died from overwhelming sepsis. Concomitant vascular injury was demonstrated in 8 of the 14 patients (57%), and in 3 of the 4 (75%) patients that died.ConclusionsHepatic atrophy or sepsis after biliary injury can be managed successfully with hepatic resection. Liver transplantation is required occasionally for patients with secondary biliary cirrhosis, but is rarely successful for early hepatic failure following iatrogenic biliary injury.
School Climate and Implementation of a Preventive Intervention
Authors: Gregory Anne , Henry David B. , Schoeny Michael E. ,   The Metropolitan Area Child Study Research Group
Published: October 2007

AbstractAlthough there has been wide dissemination of research‐based psychosocial prevention programs, a similarly strong research base to guide program implementation has been lacking. Program implementation has been particularly difficult for schools, due partly to insufficient understanding of how school ecologies interact with these programs. This study examined the effects of multiple dimensions of school climate on level and rate of change in implementation of a violence prevention intervention across three school years. Using multi‐level modeling, the study found that teacher‐reported support between staff and among teachers and students predicted higher average levels of implementation. Teacher‐reported administrative leadership predicted greater growth in implementation across 3 years. Findings offer implications for an ecological model of program implementation that considers school‐level contextual effects on adoption and sustainability of new programs in schools.